Israeli troops have captured a strategic mountain topped with a Crusader-built castle in southern Lebanon in the deepest incursion into the country in more than a quarter-century, the military said on Sunday.The taking of Beaufort Castle, near the city of Nabatiyeh, followed days of air strikes and intense fighting in nearby villages between Israeli troops and Hezbollah militants.The capture marked a major Israeli advance in the latest Israel-Hezbollah war, which began on March 2, when...