Israeli forces pushed deep into the ruins of Gaza’s northern edge to recapture an area where they had claimed to have defeated Hamas months ago, while at the opposite end of the enclave, tanks and troops pushed across a highway into Rafah. With some of the most intense fighting for weeks now taking place on both the northern and southern edges of Gaza on Monday, hundreds of thousands of Palestinians have again taken flight, and aid groups warn that a humanitarian crisis could sharply worsen.
