Sept. 5, 1961 - President de Gaulle of France urged today that the West firmly resist, by force if necessary, the menace of the Soviet "totalitarian empire." He said that any use of Soviet force in Berlin should be met by force to maintain Allied positions and communications. The French President said that war would come only if Premier Khrushchev started it. If he did, President de Gaulle said, any sign of Western weakness or division would only increase the Soviet appetite without averting war. General de Gaulle suggested that interference with Allied communications with Berlin should be both resisted by force and answered by action against Soviet shipping and aircraft anywhere in the world.