Cé gur thosaigh an choimhlint tar éis Oibríocht Gibraltar na Pacastáine, a bhí deartha chun fórsaí a infiltrate isteach i Jammu agus Kashmir a precipitate insurgency i gcoinne riail na hIndia. India retaliated by launching a full-scale military attack on West Pakistan. The seventeen-day war caused thousands of casualties on both sides and witnessed the largest engagement of armored vehicles and the largest tank battle since World War II. Hostilities between the two countries ended after a United Nations-mandated ceasefire was declared following a diplomatic intervention by the Soviet Union and the United States, and the subsequent issuance of the Tashkent Declaration. Bhí an cogadh i bhfeidhm ag fórsaí talún na dtíortha a bhí ar siúl idir Aibreán 1965 agus Meán Fómhair 1965 idir an Phacastáin agus an India. Thosaigh an choimhlint tar éis Oibríocht Gibraltar na Pacastáine, a bhí deartha chun fórsaí talún a infiltrate isteach i Jammu agus Kashmir chun insurgency i gcoinne riail na hIndia agus na Pacastáine.
1965 an bhliain