The Israeli military began crossing the yellow line, as defined in the ceasefire agreement, on April 17 and launched ground operations into areas beyond it. According to France24, Israeli forces captured a mountain with a Crusader-built castle near the city of Nabatiyeh, described as the deepest incursion into Lebanon in more than a quarter century. France24 also reported that Israel’s military stated its forces were expanding to additional areas in Lebanon aimed to improve military position. Al Jazeera reported that Israel’s military presence in southern Lebanon has expanded. The depth of Israeli military operation in Lebanon is uncertain.