The Indo-Pakistani Fight of 1965 was a war that took place between April 1965 and 23 September 1965 between Islamic Republic of Pakistan and the Republic of India. This conflict became known as the Second Kashmir War. Both countries fought over the disputed Himalayan region of Kashmir. The first Kashmir War took place in 1947. The war began after Pakistan's Operation Gibraltar. In this operation, Pakistan wanted to bring forces into Indian-held Jammu and Kashmir to conquer the area of Kashmir ruled by India. The five-week war caused thousands of deaths on both sides. It ended when India asked the United Nations (UN) for ceasefire.