1966

U.S. and Vietnamese forces today launched the largest air assault operation since the intervention in Vietnam nearly three years ago, the U.S. military said. More than 250 aircraft are involved in Operation Birmingham, supporting more than 5000 Vietnamese and U.S. troops near Tay Ninh, about 75 miles north of Saigon. The aircraft also delivered troops from the South Vietnamese and U.S. Army to multiple objectives.

(summary) [from Cold War Files], and also from Googled sites

2006

U.S. and Iraqi forces today launched the largest air assault operation since the invasion of Iraq nearly three years ago, the U.S. military said. More than 50 aircraft are involved in Operation Swarmer, supporting more than 1,500 Iraqi and U.S. troops near Samarra, about 75 miles north of Baghdad. The aircraft also delivered troops from the Iraqi and U.S. Army to multiple objectives.

(link) [CNN.com]