Israel could face a new front as its military pushes and expands operations south, jeopardizing relations with Egypt as the two sides are already at loggerheads over a narrow strip of land between Egypt and Gaza.

Israeli leaders say that to complete the destruction of Hamasthey must eventually extend their assault to Gaza’s southernmost city of Rafah and take control of the Philadelphia Corridor, a tiny security zone on the border with Egypt that was demilitarized after the 1979 peace agreement between the two countries.

At a press conference last week, Israeli Prime Minister Benjamin Netanyahu said Hamas continues to smuggle weapons across the border – a claim Egypt strongly denies – and that the war cannot end “until we close this breach”, citing in the hallway.

The statement was met with a sharp warning from Egypt that the deployment of Israeli troops in the strip, known in Egypt as the Salaheddin Corridor, would violate the peace deal.

“Any move by Israel in this direction will lead to a serious threat to Egyptian-Israeli relations,” said Diaa Raswan, head of Egypt’s State Intelligence Service.