JERUSALEM (AP) — Israel said Friday it will intensify its 22-month war with Hamas by taking over Gaza City, stirring fears for Palestinian civilians and Israeli hostages still held in Gaza, and renewing international pressure for an end to the conflict.

It may also reflect the reservations of Israel’s military chief of staff, Lt. Gen. Eyal Zamir, who reportedly warned that expanding operations would endanger the remaining 20 or so living hostages held by Hamas and further strain Israel’s army after nearly two years of regional wars.

A group representing many of the hostages’ families has said the Israeli security cabinet’s plan to take control of Gaza City could further endanger their loved ones.