Patterns are usually employed at small general aviation (GA) airfields and military airbases. Tajikistan provided use of its airspace, airbases and facilities for humanitarian aid. Aircraft carriers are warships that act as airbases for carrier-based aircraft. Several squadrons moved to forward airbases on the continent. Total Libyan casualties were estimated at 60, including those at the bombed airbases. Some airbases, known as "military airports", provide facilities similar to their civilian counterparts. Infantry units are tasked to protect certain areas like command posts or airbases. There were 13 military airbases in Libya. The Pakistan Army launched a number of covert operations to infiltrate and sabotage Indian airbases. The Soviet Army assisted the Ili Uyghur army in capturing several towns and airbases. Typical missions would start before dawn and would have the Heinkels strafe Soviet airbases. Avro Lancasters/Lincolns, operating out of airbases on Okinawa. The RAF attacked airbases and communications and rapidly gained air superiority. Achieving complete surprise, the fighters made several passes against all three airbases. It is one of the 13 military airbases in Libya.