The <a class="mw-redirect" href="https://en.wikipedia.org/wiki/1st_Air_Commando_Group" id="mwcA" rel="mw:WikiLink" title="1st Air Commando Group">1st Air Commando Group</a> using <a href="https://en.wikipedia.org/wiki/Sikorsky_R-4" id="mwcQ" rel="mw:WikiLink" title="Sikorsky R-4">Sikorsky R-4</a> helicopters stage the first use of helicopters in <a href="https://en.wikipedia.org/wiki/Military_helicopter" id="mwcg" rel="mw:WikiLink" title="Military helicopter">combat</a> with <a href="https://en.wikipedia.org/wiki/Combat_search_and_rescue" id="mwcw" rel="mw:WikiLink" title="Combat search and rescue">combat search and rescue</a> operations in the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/China_Burma_India_Theater" id="mwdA" rel="mw:WikiLink" title="China Burma India Theater">China Burma India Theater</a>.