Prime Minister Ariel Sharon opened the Knesset (parliament) winter session by demanding that the Palestinian Authority wage "a real war" on terrorism. And if they don't, Israel will. "Israel will continue to defend itself and hit the perpetrators of terrorism," Sharon said. He also expressed support for the internationally-backed "roadmap" peace plan. "The 'roadmap' is the only plan that gives hope for peace and security for both [the Israeli and Palestinian] peoples," the Prime Minister said. Sharon vowed to strengthen Jewish settlement blocs in Judea and Samaria and to complete construction of the security barrier.