The two countries signed a deal three years after negotiations began to strengthen alliances in what the British prime minister called a “new era” of trade.

India and Pakistan said they shot down each other’s drones and missiles over densely populated cities in a second day of military hostilities, while the US continued to seek to ease the flare-up between nuclear-armed neighbors triggered by last month’s deadly militant attack in the disputed region of Kashmir.

India fired attack drones into Pakistan on Thursday, the Pakistani military said, while India accused its neighbor of attempting its own attack as tensions soared between the nuclear-armed rivals. This is a photo gallery curated by AP photo editors.