The Israel Defense Forces insisted it was “not forcing the Palestinians to evacuate,” but said it had “allowed residents of the camp to evacuate … through an organized and secured point.”

As Israel withdraws some of its troops from Gaza during a cease-fire there, it has turned attention to another Palestinian territory — in particular a city with a history of militant activity.

Prime Minister Benjamin Netanyahu said the assault on Jenin would be “extensive and significant,” as the military erected new checkpoints across the West Bank.