Why is Israel refusing to fully withdraw from Lebanon despite the ceasefire agreement?

Israel is maintaining a presence at five strategic positions along the Lebanon border, citing security concerns. These locations, situated on high ground overlooking Lebanese territory, are considered vital to Israel's security. Netanyahu justified this decision by insisting Israel will do whatever necessary to enforce the ceasefire. Under the original US-brokered agreement, Lebanon's military was supposed to take control of the region alongside UN peacekeepers after Israel's withdrawal by February 18. However, Israel announced it would maintain these strategic positions, which has increased the possibility of renewed clashes with Hezbollah and further raised tensions in an already volatile regional situation.