Shamshernagar Airport
According to East Pakistan Air Operations , 1971 , during the Bangladesh Liberation War , Shamshernagar was the base of the first fighting formation of what would become the Bangladesh Air Force: a DC-3 Dakota , a DHC-3 Otter , and an Alouette III helicopter together known as "Kilo Force" . 
<triplet> East Pakistan Air Operations, 1971 <subj> Bangladesh Liberation War <obj> part of <triplet> Bangladesh Air Force <subj> 1971 <obj> inception