TEL AVIV — Israel entered the first stages of a planned assault on Gaza City on Wednesday after approving a plan to take it over that includes calling up 60,000 reservists for an expanded military operation in the besieged Palestinian enclave.

​TEL AVIV — Israel entered the first stages of a planned assault on Gaza City on Wednesday after approving a plan to take it over that includes calling up 60,000 reservists for an expanded military operation in the besieged Palestinian enclave.