Israeli Prime Minister Benjamin Netanyahu said Thursday that Israel has the “full right” to annex the Jordan Valley if it chose to, even as the chief prosecutor of the International Criminal Court warned the country against taking the bold step. Netanyahu said his proposal to annex the strategic part of the occupied West Bank was discussed during a late-night meeting with U.S. Secretary of State Mike Pompeo. He said they also agreed to move forward with plans for a joint defense treaty. The longtime Israeli leader, beleaguered by a corruption indictment and political instability at home, is promoting the two...