An international coalition of forces assembled under the United Nations that forced the withdrawal of Saddam Hussein's Iraqi forces from Kuwait, which they had invaded and occupied in August 1990.

The answer is Persian Gulf War / Operation Desert Storm

The beginning of the operation was carried out with a massive airstrike from the United States army for about 42 days.

By the end of 42th, most of Iraqi soldiers in Kuwait have either fled away from the area or Given up.