Israeli tanks moved into the occupied West Bank on Sunday for the first time in decades in what Palestinian authorities called a “dangerous escalation,” after the defense minister said troops will remain in parts of the territory for a year and tens of thousands of Palestinians who have fled cannot return.

Israel says it is scaling up a weekslong offensive in the occupied West Bank, sending in tanks to a militant stronghold and pledging to keep troops in place for the next year in areas where Palestinia