offensive on(The general offensive on Berlin was to last some 45 days by as rapid an advance as possible. • Soviets cross the Oder River and launch offensive on Berlin, starting the Battle of Seelow Heights.4uzhoj)
offensive against(In September 1939, Von Reichenau was given command of the German Tenth Army to invade Poland at the start of World War II, and he led the German Sixth Army during the invasion of Belgium and the ensuing offensive against France.4uzhoj)