Pakistan viewed the military of India as being weakened following the Sino-Indian War in 1962. A small border skirmish between India and Pakistan in the Rann of Kutch in April 1965 caught the Indian Army unprepared. The skirmish occurred between the border police of both countries due to poorly defined borders and later the armies of both countries responded. The result was decisive for the Pakistan army which was commended at home. Emboldened by this success, Operation Gibraltar, an infiltration attempt in Kashmir, was launched later that year. Rebellion was fostered among local Kashmiris to attack the Indian Army. Pakistan Army had a qualitative superiority over their neighbours. This caused a full-fledged war across the international border (the Indo-Pakistani War of 1965) broke out between India and Pakistan. The air forces of both countries engaged in massive air warfare. While on the offensive both armies occupied some of the other country's territory, resulting in a stalemate, but both sides claim victory.