The Achaemenid Empire (/ækəˈmɛnɪˌdi/; Old Persian: Parsā, name of ruling dynasty: Haxāmanišiya) (c. 550–330 BCE), sometimes known as First Persian Empire, was an Iranian empire in Southwest Asia, founded in the 6th century BCE by Cyrus the Great who overthrew the Median confederation. It expanded to eventually rule over significant portions of the ancient world which at around 500 BCE stretched from the Indus Valley in the east, to Thrace and Macedon on the northeastern border of Greece making it the biggest empire the world had yet seen. The Achaemenid Empire would eventually control Egypt as well. It was ruled by a series of monarchs who unified its disparate tribes and nationalities by constructing a complex network of roads.

Calling themselves the Parsa after their original Aryan tribal name Parsua, Persians settled in a land which they named Parsua, bounded on the west by the Tigris River and on the south by the Persian Gulf. This became their heartland for the duration of the Achaemenid Empire. It was from this region that eventually Cyrus the Great (Cyrus II of Persia) would advance to defeat the Median, the Lydian, and the Babylonian Empires, opening the way for subsequent conquests into Egypt and Asia minor.

The Persian Gulf War (2 August 1990 – 28 February 1991), codenamed Operation Desert Storm (17 January 1991 – 28 February 1991) commonly referred to as simply the Gulf War, was a war waged by a UN-authorized coalition force from 34 nations led by the United States, against Iraq in response to Iraq's invasion and annexation of Kuwait.

The war is also known under other names, such as the First Gulf War, Gulf War I, or the Iraq War, before the term "Iraq War" became identified instead with the 2003 Iraq War (also referred to in the U.S. as "Operation Iraqi Freedom").

The invasion of Kuwait by Iraqi troops that began 2 August 1990 was met with international condemnation, and brought immediate economic sanctions against Iraq by members of the UN Security Council. U.S. President George H. W. Bush deployed American forces into Saudi Arabia, and urged other countries to send their own forces to the scene. An array of nations joined the coalition. The great majority of the military forces in the coalition were from the United States, with Saudi Arabia, the United Kingdom and Egypt as leading contributors, in that order. Around US$36 billion of the US$60 billion cost was paid by Saudi Arabia.

Cyrus II of Persia (Old Persian: Kuruš (c. 600 BC or 576 BC–530 BC), commonly known as Cyrus the Great, also known as Cyrus the Elder, was the founder of the Achaemenid Empire. Under his rule, the empire embraced all the previous civilized states of the ancient Near East, expanded vastly and eventually conquered most of Southwest Asia and much of Central Asia, parts of Europe and the Caucasus. From the Mediterranean sea and Hellespont in the west to the Indus River in the east, Cyrus the Great created the largest empire the world had yet seen. He also pronounced one of the first historically important declarations of human rights via the Cyrus Cylinder sometime between 539-530 BCE.

The reign of Cyrus the Great lasted between 29 and 31 years. Cyrus built his empire by conquering first the Median Empire, then the Lydian Empire and eventually the Neo-Babylonian Empire. Either before or after Babylon, he led an expedition into central Asia, which resulted in major campaigns that were described as having brought "into subjection every nation without exception". Cyrus did not venture into Egypt, as he himself died in battle, fighting the Massagetae along the Syr Darya in December 530 BC. He was succeeded by his son, Cambyses II, who managed to add to the empire by conquering Egypt, Nubia, and Cyrenaica during his short rule.