helicopters

Indonesian Apache helicopter fly in formation over warships during celebrations of the 69th anniversary of the Indonesian Armed Forces (TNI) in Surabaya, East Java, Indonesia, 07 October 2014. More than 20,000 military personnel, 239 units of military aircrafts, 42 units of military ships and 149 units of combat vehicles participated during the celebrations.

Fully Handoko/EPA

Indonesian Apache helicopters fly in formation over warships during celebrations of the 69th anniversary of the Indonesian Armed Forces (TNI) in Surabaya, East Java, Indonesia on Tuesday

Indian Air Force "Sarang" helicopter display team performs during the Indian Air Force Day celebrations at the Hindon air force station on the outskirts of New Delhi...Indian Air Force "Sarang" helicopter display team performs during the Indian Air Force Day celebrations at the Hindon air force station on the outskirts of New Delhi October 8, 2013. The IAF celebrated its 81st anniversary on Tuesday.

Anindito Mukherjee/Reuters

Indian Air Force Sarang helicopter display team performs during the Indian Air Force Day celebrations at the Hindon air force station on the outskirts of New Delhi. The IAF celebrated its 81st anniversary on Tuesday.