What event started the gulf war in 1991?
a. the invasion of kuwait by iraq
b. the invasion of pakistan by india
c. the invasion of egypt by great britain
d. the invasion of afghanistan by the soviet union

The best answer is A.

Saddam Hussein who was the Iraqi leader at the time ordered the invasion of and occupation of Kuwait in August 1990.

Saddam Hussein defied United Nations  Security Council demands to withdraw  from Kuwait by Mid - January 1991. and the Persian Gulf war began with a massive U.S.  led air offensive called operation desert storm . After 42 days of relentless allied ground and air assault, the Iraqi army was in tatters  and President Bush declared a ceasefire on 28thFebruary 1991.