June 5, 1982

Prime Minister Margaret Thatcher of Britain conferred separately today with President Reagan and President Francois Mitterrand of France and received what British officials said was staunch support for British military actions and plans in the Falkland Islands. ''The Prime Minister, after both meetings, felt even more reassured than she was before,'' said Foreign Secretary Francis Pym this evening. He added that both Mr. Reagan and Mr. Mitterrand agreed that it remained up to Argentina to forestall a potentially bloody British assault on Stanley, the capital, by agreeing to remove its forces from the islands. ''We are on the island to repossess if the Argentines do not withdraw,'' Mr. Pym said.

The unemployment rate rose one-tenth of a percentage point in May, to 9.5 percent of the labor force, the Labor Department reported today. It was the second straight month of high unemployment rates not seen since 1941, when the level was 9.9 percent for the year. The May rise was smaller than the sharp increase of four-tenths of a percentage point in April, however, and the number of employed workers increased for the first time since January. Those holding jobs in May rose by 780,000 to a total of 100,117,000.

Waves of Israeli jets struck at Palestinian guerrilla camps here and in southern Lebanon today in what the Israeli command described as retaliation for the shooting of the Israeli Ambassador to Britain. For two hours, Israeli planes bombed crowded Palestinian guerrilla camps in Beirut's southern suburbs. Then Israeli jets attacked southern guerrilla strongholds in the terraced hillsides around Nabatiye, Arab Selim and Wadi al-Akhadar, about 10 miles north of the Israeli border. Lebanese Government security sources said at least 45 people were killed and more than 150 wounded in the Israeli strikes here and in southern Lebanon.

In the grand setting of former French royalty, the leaders of seven industrial nations formally opened their economic summit conference tonight, still at odds over measures to ease the world recession and stabilize the value of their currencies. At their first gathering, they set aside their discussion of the world recession, however, to confer on the future of the Falkland Islands - without urging Britain to pause before a final assault on Stanley, the capital. An official close to the conference said that none of the leaders had told Prime Minister Margaret Thatcher of Britain to refrain from the final assault. The finance ministers of the seven countries, meeting at the same time as the heads of government, were reported to have narrowed the gap on such key issues as a tougher credit strategy toward the Soviet Union and closer monetary cooperation to reduce currency fluctuations.

President Hosni Mubarak of Egypt has turned down an informal American suggestion that he meet later this month in Washington with President Reagan and Prime Minister Menachem Begin of Israel, Administration officials said today. The purpose of the meeting, they said, would have been to give new impetus to the stalemated negotiations on Palestinian self-rule. Instead, Egyptian officials informed the United States that they would prefer to keep initial discussions at a lower level and would send Foreign Minister Kamal Hassan Ali to Washington on June 12 for talks with American officials. Mr. Ali went to Israel this week to confer with Mr. Begin and Foreign Minister Yitzhak Shamir. Looking for a dramatic way of reviving the negotiations on granting self-rule to the Palestinians in the West Bank and Gaza, the Reagan Administration proposed taking advantage of Mr. Begin's planned trip to the United States in connection with the special United Nations General Assembly session on disarmament and arranging a three-way meeting.