Kuwait and Iraq were both under British rule in Ottoman empire in the past
However, Iraq was unhappy with Kuwait's independence in 1961
Iraq refused to accept Kuwait's independence by trying to claim sovereignty over Kuwait forcefully
This only stopped when Iraq was pressured by neighbouring countries
However, Iraq still tried to threaten Kuwait using its military forces during border clashes between the countries despite Kuwait offering economic help to Iraq during the Iraq-Iran war
Tensions between Iraq and Kuwait increased as their relations worsened