Battle of Opis
{'<entity_0>': 'Neo-Babylonian Empire', '<entity_1>': 'Cyrus the Great', '<entity_2>': 'Battle of Opis', '<entity_3>': 'Mesopotamia', '<entity_4>': 'Babylonia', '<entity_5>': 'battle', '<entity_6>': 'Opis'}
[['Battle of Opis', 'instance of', 'battle'], ['Battle of Opis', 'location', 'Opis'], ['Battle of Opis', 'part of', 'Cyrus the Great'], ['Battle of Opis', 'location', 'Babylonia'], ['Battle of Opis', 'location', 'Mesopotamia'], ['Battle of Opis', 'location', 'Neo-Babylonian Empire']]
The <entity_2>, fought in September 539 BC, was a major engagement between the armies of Persia under <entity_1> and the <entity_0> under Nabonidus during the Persian invasion of <entity_3>. The <entity_5> was fought in or near the strategic riverside city of <entity_6>, north of the capital Babylon. The site of the <entity_5> was at the city of <entity_6> on the river Tigris, located about 50 miles (80 km) north of modern Baghdad. Further information on Cyrus's campaign is provided by the later ancient Greek writers Herodotus and Xenophon, though neither mention the <entity_5> at <entity_6> and their accounts of the campaign differ considerably from the Persian and Babylonian sources. The only remaining significant unconquered power in the Near East was the <entity_0>, which controlled <entity_3> and subject kingdoms such as Syria, Judea, Phoenicia and parts of Arabia. By the time of the <entity_5>, <entity_4> was in an unpromising geopolitical situation; the Persian empire bordered it to the north, east and west. The Nabonidus Chronicle records that the <entity_5> took place in the month of Tashritu (27 September-27 October) "at <entity_6> on the Tigris". However, the <entity_5> demonstrates that the existing Babylonian regime actively resisted Cyrus's invasion of <entity_3>. According to Herodotus, Cyrus marched to Babylon along the side of the Diyala river (past <entity_6>, though the <entity_5> is not mentioned), where the Persians fought a <entity_5> with the Babylonians near the capital. The famous siege and capture of Babylon by Cyrus is contradicted by his inscription, which relates that, after a <entity_5> at <entity_6> and another at Sippara, his general, Gobryas, entered the city without a struggle. The Babylonian defeat at <entity_6> and the apparently unopposed Persian entry into Babylon ended the independence of <entity_4> (although there were a number of unsuccessful revolts against later Persian rulers).
['battle']