<a href="https://en.wikipedia.org/wiki/Vietnam_War" id="mwAS0" rel="mw:WikiLink" title="Vietnam War">Vietnam War</a>: A United States Air Force <a href="https://en.wikipedia.org/wiki/Lockheed_C-5_Galaxy" id="mwAS4" rel="mw:WikiLink" title="Lockheed C-5 Galaxy">Lockheed C-5A Galaxy</a> <a href="https://en.wikipedia.org/wiki/Operation_Babylift" id="mwAS8" rel="mw:WikiLink" title="Operation Babylift">transporting orphans</a>, <a href="https://en.wikipedia.org/wiki/1975_Tân_Sơn_Nhứt_C-5_accident" id="mwATA" rel="mw:WikiLink" title="1975 Tân Sơn Nhứt C-5 accident">crashes</a> near <a href="https://en.wikipedia.org/wiki/Ho_Chi_Minh_City" id="mwATE" rel="mw:WikiLink" title="Ho Chi Minh City">Saigon</a>, <a href="https://en.wikipedia.org/wiki/South_Vietnam" id="mwATI" rel="mw:WikiLink" title="South Vietnam">South Vietnam</a> shortly after takeoff, killing 172 people.