JERUSALEM, May 31 (Reuters) - Israeli troops have seized the 900-year-old Beaufort Castle and its strategic ridge in southern Lebanon, the military said on Sunday, a major advance against Iran-backed Hezbollah despite a ceasefire announced more than six weeks ago. It comes after Saturday, one of the heaviest days of Hezbollah fire toward northern Israel since the April ceasefire, prompting school closures and restrictions.

As part of an offensive operation, the Israeli army intends to regain control of the fortress

Israel has captured the 12th-century Beaufort castle that overlooks southern Lebanon and northern Israel. The move suggests Israel is planning an extended military presence in…