The nature and significance of the army and navy: the levy system and the multi-ethnic army, the 10,000 Immortals, cavalry, and the imperial navy (Phoenician, Ionian, Egyptian and Cypriot contingents); military organisation and command; and the management of subject peoples in the empire, including satrapal levies, hostages and local elites

A 3-mark "outline" needs the main structural features, correctly named, with brief development. Markers award roughly one mark per accurate point.

Point 1: The satrapy as the unit of obligation

Darius I organised the empire into about 20 satrapies (Herodotus, Histories 3.89-97), each responsible for a fixed tribute and a levy of troops to the king.

Point 2: Contingents fought as national units

Each people supplied its own troops, who fought under their own commanders in their own dress and weapons rather than being drilled into a uniform Persian army (Herodotus 7.61-99).

Point 3: The result was a genuinely imperial army

Herodotus's catalogue of Xerxes' invasion force names dozens of subject peoples, from Persians and Medes to Ethiopians and Indians, showing the levy converted the empire's diversity directly into military manpower.

Markers reward the satrapy as the administrative unit, the "own dress and weapons" detail, and a named example from the catalogue.

A 4-mark "describe" needs several accurate features of the institution with brief development.

Composition. The Immortals (a Greek label; the Old Persian term is not preserved) were an elite corps of heavy infantry drawn mainly from Persians, Medes and Elamites.

Why "Immortals." Herodotus (Histories 7.83) explains the name: the corps was always kept at exactly 10,000 men, so that if one fell sick, was wounded or died, another man was immediately appointed to replace him, and the total never rose or fell.

Equipment and status. Herodotus (7.83, 7.211) notes their spears carried gold or silver pomegranate-shaped counterweights depending on rank, a mark of prestige visible in the Apadana and glazed-brick reliefs from Persepolis and Susa.

Function. The Immortals formed the king's standing royal guard and elite infantry reserve, held apart from the satrapal levies and committed at decisive moments, including the final assault at Thermopylae in 480 BC under Hydarnes.

Markers reward the exact figure of 10,000, the explanation of the name, and the royal-guard function.

A 5-mark "explain" with a source needs the source USED explicitly, a clear point about organisation, and own knowledge beyond the source.

Use the source

Source A (a reconstruction of the kind of catalogue Herodotus gives at Histories 7.61-99) shows three separate national contingents, Persian, Median and Ethiopian, each retaining its own distinct dress and weaponry rather than a standard imperial kit. The detail that Median and Persian equipment was identical because Median dress had simply been adopted as Persian also signals the deep integration of the empire's two dominant peoples.

The mechanism (own knowledge)

This pattern held across the whole army: the levy system required each satrapy to supply troops who fought under their own commanders (Herodotus names, among many, an Indian, a Bactrian and an Arabian commander), so the army's organisation was a coalition of national contingents rather than a single standing force. The core citizen troops, Persians and Medes, were closest to the king; the more distant and lightly equipped contingents, such as the stone-arrow-tipped Ethiopians, illustrate the empire's vast geographic reach and the very uneven quality of equipment this produced.

Qualify the source type

Herodotus wrote this catalogue as a Greek from Halicarnassus around the 430s or 420s BC, roughly half a century after the invasion, for an audience that wanted the scale of "barbarian" Persia to magnify the Greek victory, so the level of exotic ethnographic detail should be read as partly rhetorical colour rather than a precise inventory.

Markers reward explicit use of the source's specific details, the link to the satrapal levy system, and a brief evaluation of Herodotus as a source type.

A 6-mark source-evaluation task needs BALANCED usefulness and reliability, anchored in origin, purpose and date, plus a named modern historian.

Origin, date, purpose

Herodotus (Histories, completed around the 430s or 420s BC) was a Greek from Halicarnassus, itself a Persian subject city, writing decades after the events for a Greek audience for whom the scale of the "barbarian" host magnified the achievement of the Greek defenders.

Usefulness

The account is genuinely useful: Herodotus preserves the ONLY surviving detailed catalogue of the army's ethnic composition, equipment and command structure (7.61-99), and of the fleet's contingents and commanders (7.89-99), material found nowhere else and broadly consistent with what Persian administrative sources (below) confirm about the empire's diversity.

Reliability

Reliability collapses specifically on the numbers. Herodotus's grand total, 5,283,220 combatants and camp followers (7.184-186), and 1,207 warships (7.89), is logistically impossible: no ancient road or water supply along the Thracian and Macedonian route could sustain a force of that size, and modern historians (Hignett, Xerxes' Invasion of Greece, 1963; Cawkwell, The Greek Wars, 2005) argue from marching-column length and supply capacity that the real land force was very likely in the low hundreds of thousands at most.

Method

A historian therefore corroborates Herodotus's structural detail (the satrapal levy, the Immortals, the named contingents) against the Behistun Inscription and the Persepolis Fortification Tablets, which confirm the empire's administrative reach without Herodotus's inflation, and treats his numbers as rhetorically exaggerated rather than statistically reliable.

Markers reward the specific figures, the logistical reasoning against them, a named historian, and corroboration as method rather than a blanket verdict of "biased, therefore useless."

A 5-mark "explain" needs several mechanisms with a clear causal link to cooperation, not a list of unconnected facts.

Satrapal administration

Darius's roughly 20 satrapies (Herodotus 3.89-97) each owed a fixed tribute and troop levy, administered by a satrap (often a Persian noble or member of the royal family) who was the point of contact between the crown and the local population.

Retaining local elites

Rather than replacing every local ruling class, Persia often kept it in place: Herodotus (7.98) names subject kings, including of Phoenician cities, still ruling and personally commanding their own ships within the imperial fleet, and the Egyptian priest-official Udjahorresne's own inscription shows Egyptian elites continuing to serve the Persian crown after conquest.

Adjusting policy after unrest

After the Ionian Revolt (499 to 494 BC), Darius's officials recalibrated rather than simply punished: the satrap Artaphernes reassessed Ionian tribute more fairly by surveyed land area (Herodotus 6.42), and in 492 BC Mardonius deposed the Persian-backed tyrants in the Ionian cities and installed democracies (Herodotus 6.43), removing a standing grievance.

Hostages and court ties

Sons of satrapal and noble families were commonly educated, and in effect held, at the royal court, a practice that bound provincial elites to the dynasty by upbringing as much as by force.

The reverse case

Where cooperation failed, the response was severe: Miletus, the leading rebel city, was sacked in 494 BC and its population killed, enslaved or resettled (Herodotus 6.20), a visible deterrent behind the more usual policy of accommodation.

Markers reward at least three distinct mechanisms, the post-revolt adjustment (Artaphernes and Mardonius), and the Miletus counter-example.

A 12-mark extended response needs a sustained judgement, dated evidence from at least two areas of the military system, and historiography.

Thesis

Reliance on subject peoples was the empire's greatest military strength, converting its vast size directly into manpower and ships no single people could have supplied alone, but it was also a structural weakness, because the loyalty of levied and conscripted subjects could never fully match that of citizen soldiers fighting for their own cities, and this gap became visible whenever Persia met determined Greek resistance.

Argument line 1: The strength

The levy system (Herodotus 3.89-97) turned around 20 satrapies into a single army and a single fleet: the land catalogue (7.61-99) lists dozens of national contingents, and the navy drew its core from Phoenician, Egyptian, Cypriot and Ionian Greek squadrons (7.89-99), a combined force no rival Greek city-state could match in scale. The suppression of the Ionian Revolt at Lade (494 BC), where the Phoenician-led Persian fleet defeated the Ionian rebels after Samian ships withdrew mid-battle, shows the system working effectively.

Argument line 2: The weakness

The same navy carried the seeds of disloyalty: at Salamis (480 BC), Herodotus (8.85) records Persian commanders stationed to watch the Ionian Greek contingent because their loyalty against fellow Greeks was suspect, and at Mycale (479 BC) Ionian squadrons serving Persia reportedly wavered and turned on their own commanders once the battle favoured the Greeks (Herodotus 9.103-104). A force assembled from subject and sometimes recently rebellious peoples could not be trusted as completely as one composed of citizens.

Historiography

Pierre Briant (History of the Persian Empire, 2002) argues the levy system was a sophisticated and generally durable instrument of imperial control, not a fragile improvisation; George Cawkwell (The Greek Wars, 2005) stresses that Persia's defeats in Greece owed as much to logistics and Greek unity as to any inherent unreliability of subject troops.

Model paragraph (argument line 2)

Yet the very diversity that gave Xerxes his numbers also gave him a fault line running through his fleet. At Salamis, Herodotus records that Persian marines were deliberately placed aboard Ionian Greek ships to watch their conduct, a precaution that only makes sense if Persian commanders themselves doubted whether men from Miletus, Samos or Chios would fight wholeheartedly against Athens and Sparta. That doubt was vindicated the following year at Mycale, where Ionian contingents in Persian service are said to have turned against their own commanders once the battle's outcome became clear. A military system built on conquered peoples could multiply an empire's reach, but it could not manufacture their loyalty.

Conclusion

To a large extent a strength in scale and reach, and to a real but narrower extent a weakness in loyalty under pressure, most visible precisely where subject Greeks were asked to fight fellow Greeks. Judgement sustained.

Marker's note: top-band responses answer "to what extent" with a verdict sustained in every paragraph, cite at least two dated engagements as evidence, and use Briant and Cawkwell as argument, not decoration.

A Band-6 Section II essay sustains a judgement on "assess," organises by argument rather than narrative, ties every claim to dated evidence, and weaves ancient and modern voices. This is a plan plus a model paragraph.

Thesis

The army and navy of Darius and Xerxes were not separate from the empire's management of subject peoples; they WERE its clearest expression. The satrapal levy converted diversity into manpower, the Immortals and Persian cavalry gave the crown a loyal core, and the imperial navy showed both the system's reach and its central weakness, so that the empire's greatest military strength and its most exposed vulnerability came from the very same source.

Argument line 1: The army as an imperial institution

Darius's roughly 20 satrapies (Herodotus 3.89-97) each owed troops as well as tribute; the resulting army fought as national contingents in their own dress and equipment (Herodotus 7.61-99), a structure that made the army a working model of the empire itself. At its centre stood the 10,000 Immortals, always kept at exactly that number (Herodotus 7.83, 7.211), and cavalry drawn from Persian nobles, Medes, Sacae horse-archers and Bactrians, commanded in the field under men such as Mardonius, Datis and Hydarnes.

Argument line 2: The navy as both strength and fault line

The fleet's core contingents, Phoenician (rated by Herodotus, 7.44 and 7.96, as the fastest and best-manned ships), Egyptian, Cypriot and Ionian Greek (7.89-99), gave Persia naval reach no Greek state could equal, decisive at Lade in 494 BC in crushing the Ionian Revolt. Yet the same navy exposed the limits of subject loyalty: Persian marines were placed to watch the Ionian squadron at Salamis in 480 BC (Herodotus 8.85), and Ionian contingents reportedly turned on their own commanders at Mycale in 479 BC (Herodotus 9.103-104).

Argument line 3: The management of subject peoples

Persia combined firmness with pragmatic accommodation. The sack of Miletus in 494 BC (Herodotus 6.20) demonstrated the cost of rebellion, while Artaphernes's fairer tribute reassessment (Herodotus 6.42) and Mardonius's installation of democracies in Ionia in 492 BC (Herodotus 6.43) show a system willing to remove grievances rather than rule by fear alone. Local elites, including Phoenician city-kings commanding their own ships (Herodotus 7.98) and Egyptian officials such as Udjahorresne who continued to serve the crown, were retained rather than swept aside, while the education, and effective hostage-taking, of noble sons at the royal court bound provincial families to the dynasty.

Historiography

Pierre Briant (History of the Persian Empire, 2002) reframes the empire as a sophisticated, generally stable system of indirect rule, not a fragile despotism awaiting collapse. Amelie Kuhrt (The Persian Empire: A Corpus of Sources, 2007) uses Persian and Near Eastern documents, including the Persepolis Fortification Tablets, to balance the Greek narrative. Cawkwell (The Greek Wars, 2005) and Hignett (Xerxes' Invasion of Greece, 1963) independently reject Herodotus's troop figures on logistical grounds, showing the numbers to be rhetorical rather than administrative.

Model paragraph (argument line 3)

The clearest proof that Persian rule over subject peoples was a managed system, not a simple hierarchy of conquerors and conquered, lies in how quickly Persian officials adjusted after the Ionian Revolt rather than merely punishing it. Miletus, the revolt's leading city, was sacked in 494 BC and its people killed, enslaved or resettled, a deliberate and public deterrent. Yet within two years the satrap Artaphernes had reassessed Ionian tribute by surveyed land area to remove a long-standing grievance, and by 492 BC Mardonius had gone further still, deposing the Persian-installed tyrants across Ionia and setting up democracies in their place. As Briant argues, this was not weakness but the pragmatic statecraft of an empire that needed its Greek subjects functioning and loyal far more than it needed to make an example of them twice.

Conclusion

The army, the navy and the management of subject peoples formed one integrated system: immensely significant in projecting Persian power across three continents, and revealing, in the loyalty strains visible at Salamis and Mycale, the one cost that came with ruling through the very peoples the empire had conquered. Judgement sustained.

Marker's note: Band 6 answers ANSWER "assess" with a verdict sustained across every paragraph, anchor each institution to a dated source (Herodotus with book and chapter, the Behistun Inscription, the Persepolis Fortification Tablets), integrate at least two named modern historians as argument, and use Salamis and Mycale as analytical evidence of the loyalty problem rather than narrative decoration.