Monitoring from the Negev desert, the US-made Forward Based X-band Tactical radar - capable of detecting long-range missiles - will track the Arrow missile system while transmitting data to a US joint tactical ground station.

The war games come as Susan Rice, the US ambassador to the United Nations, called for an end to "anti-Israel vitriol" at the United Nations.

"Member states must once and for all replace anti-Israeli vitriol with recognition of Israel's legitimacy and right to exist  in peace and security," she said at a conference in Jerusalem organised by Shimon Peres, the Israeli president .

She also stressed Washington's commitment to fighting extremism.