The Biden administration is concerned the fragile ceasefire in Lebanon could unravel after Israel and Hezbollah exchanged fire in recent days, U.S. officials say. Why it matters: The ceasefire announced last Tuesday ended more than a year of fighting between Israel and Hezbollah.

President Joe Biden announced Tuesday that Israel and Lebanon have agreed to a deal brokered by the U.S. "to end the devastating conflict between Israel and Hezbollah."

Under the terms of the deal, Israel will gradually withdraw from Lebanon, while Hezbollah isn’t allowed to rebuild near the border. But will the ceasefire hold?