They were the elite flight squadron, chosen to protect the cannon. Ironically, the same cannon who was created to shoot down the asteroids became a catalyst to the war.

他们的飞行中队是被选做来保护大炮的，也就是就是击落小行星引起战争的大炮。

youdao

India signed the agreement in February 2010 to purchase a dozen three-engine AW-101 helicopters from the Italian company for an elite squadron of the Indian Air Force which ferries around the president, the prime minister and other VIPs.

BBC: Finmeccanica helicopter deal payments frozen by India