Up to Minute War Bulletins LONDON, Sept. 23 All communication between Switzerland and the Vatican, as well as with Albania, have been interrupted, the Swiss radio announced Thursday. LONDON, Sept. 23 Americans in Britain who have not joined United States armed forces or who have not been exempted by their own government are to be called up by the British, Labor Minister Ernest Bevin said Thursday. LONDON, Sept. 23 The main Deutschlandsender radio in the Berlin area as well as the Paris and Luxemburgg transmitters went off the air at 9:30 p. m. Thursday night (London time), according to the London Daily Express. LONDON, Sept. 23 The German international information bureau said Thursday in a Berlin radio broadcast that according to reports from Teheran the activity of the United States air force in Iran was increasing. By Associated Press The German radio announced Thursday night that the bread ration in the protectorate of Bohemia and Moravia formerly Czechoslovakia would be increased by 400 grams (14 ounces) monthly in October. LONDON, Sept. 23 Bear Admiral Howard L. Vickery of the U. S. maritime commission, broadcasting to American shipyard workers after a tour of British yards, declared that cargo vessels are being built in the United Kingdom at less cost in man hours than in the United States.