In the 1900 the middle eastern country of Iraq invaded smaller neighbor Kuwait it's response international coalition forces led by the United states attacked Iraq. The resulting gulf war lasted several months and ended with Iraq defeated. A historian wants to better understand the causes and historical context of Iraq's invasion of Kuwait. Which of these sources would be most helpful to him?

A. A newspaper article condemning the invasion as violating international law.
B. An American documentary celebrating Kuwait's history and culture.
C. A timeline outlining each of the war's most important battles.
D. A recorded conversation between Iraq's generals the day before the invasion.