Many senior Pakistani officials and military experts later criticised the faulty planning of Operation Gibraltar, which ultimately led to the war. The Tashkent declaration was also criticised in Pakistan, though few citizens realised the gravity of the situation that existed at the end of the war. Political leaders were also criticised. Following the advice of Zulfikar Ali Bhutto, Pakistan's foreign minister, Ayub Khan had raised very high expectations among the people of Pakistan about the superiority – if not invincibility – of its armed forces, but Pakistan's inability to attain its military aims during the war created a political liability for Ayub. The defeat of its Kashmiri ambitions in the war led to the army's invincibility being challenged by an increasingly vocal opposition.