Israeli troops have captured a strategic mountain topped with a Crusader-built castle in southern Lebanon in their deepest incursion into the country in more than a quarter-century. The Israel military announced Sunday that it captured Beaufort castle near the city of Nabatiyeh, after days of intense fighting and airstrikes in nearby villages where Israeli troops fought Hezbollah militants. The capture marks a major gain for Israel. Israel and Lebanon held direct talks in Washington last week and are due to meet again this week. Secretary of State Marco Rubio spoke to Lebanese and Israeli leaders to propose a path to continue negotiations, according to a U.S. official who spoke on condition of anonymity to discuss private diplomatic conversations.