An Israeli military official says the country’s top generals have approved plans to call up tens of thousands of reservists in order to begin a new phase of operations in some of Gaza’s most densely populated areas.

Israel’s military says it will call up 60,000 reservists and lengthen the service of an additional 20,000 reservists.

The Israeli military plans to mobilize around 50,000 reservists ahead of the planned capture of Gaza City, with draft notices due to be sent out in the coming days, according to a military representative.