While India gave full support to East Pakistan's cause, it formally entered into war with Pakistan after it carried out strikes on forward airbases and radar installations of the Indian Air Force.
Occurring over a course of 13 days the war saw the largest number of prisoners of war since World War II.
India-Pakistan War of 1965 This war started following Pakistan's Operation Gibraltar, which was designed to infiltrate forces into Jammu and Kashmir to precipitate an insurgency against rule by India.
India retaliated by launching a full-scale military attack on West Pakistan.
The war resulted in the independence of East Pakistan and the creation of the People's Republic of Bangladesh.
India-Pakistan War of 19 Kargil War was a retaliation by Indian Army following the Pakistani army's infiltration and occupation of Indian territory mostly in the Kargil district in Kashmir.
Since Independence in 1947, India and Pakistan have been in four wars, including one undeclared war, and many border skirmishes and military stand-offs.The Kashmir issue has been the main cause, whether direct or indirect, of all major conflicts between the two countries with the exception of the India-Pakistani War of 1971 where conflict originated due to turmoil in erstwhile East Pakistan which resulted in formation of Bangladesh.