JERUSALEM (Reuters) - Israeli Defence Minister Yitzhak Mordechai met secretly with his U.S. counterpart William Cohen in Munich on Sunday to assess the situation in the Gulf, Israeli security sources said. Cohen was in the German city to lay out for Europeans his government's case for a tough line against Iraq's refusal to give U.N. weapons inspectors unconditional access. The sources had no further details on the meeting. Cohen, the U.S. defence secretary, was due to leave on Sunday for a three-day tour of six Gulf states, where he will lay out U.S. contingency plans for air strikes on Iraqi targets. Jittery Israelis, recalling the 1991 Gulf War, have lined up for gas masks, fearing a threatened U.S. strike on Iraq will push Iraqi President Saddam Hussein to unleash chemical or biological weapons on Israel. Israeli Prime Minister Benjamin Netanyahu again on Sunday tried to assure the Israeli public there was scant chance of an Iraqi missile attack.