From an armchair in Pakistan’s version of the Oval Office, Nawaz Sharif points towards the forested slopes of the Margalla Hills. “They are the foothills of the Himalayas,” says the man who reacquired the rights to this office — and to this view — when he returned for a third stint as prime minister in June. This comeback has given Mr Sharif arguably the toughest job in the world: governing a nuclear-armed nation of 180 million people, beset by terrorism, economic crisis and a perilous confrontation with India.