Last week the Solidarity leader Lech Walesa visited Bonn and got hearty encouragement, and some bad news.

Mr. Kohl, too, hopes that Mr. Gorbachev will visit Bonn.

The Prime Minister visited Madrid, Brussels, Bonn and London.

Earlier this year he visited Bonn and renewed his longstanding friendship with Chancellor Helmut Kohl.

Mikhail S. Gorbachev will visit Bonn on June 12.

Some diplomats predict that Mikhail S. Gorbachev, the Soviet leader, may formally endorse the idea of a "zero solution" when he visits Bonn next month.

Mr. Bush will also visit Bonn and London before returning to the United States.

He is scheduled to visit Bonn on Thursday.

Mr. Velayati has recently visited Bonn and Rome, where he is known to have expressed concern about growing superpower presence in the gulf.

He eventually visited Munich, Hamburg, Bonn and Cologne.