Israeli Defence Minister Ehud Barak on Thursday approved the call-up of 30,000 reserve soldiers, who can be called into action by the military at any point, the army's official spokesman said.
"We are in the process of expanding the campaign," Brigadier General Yoav Mordechai told Channel 2 television as Israel pressed a massive air campaign against Gaza militants.
"The defence minister approved a few minutes ago, based on the army's request, the recruitment of another 30,000 soldiers. We will determine how many of them will be called in," he said. "All options are on the table."