A search for a better helmet than the M35 began as soon as the results of the Polish campaign came in at the end of 1939. Eventually, extensive tests showed that the Experimental Helmet B/II, which became the M56, provided much better protection to the wearer, was more comfortable, and had a number of other significant advantages over the M35-M42 style. It also offered significant production advantages over the M35-M42 family. Hitlers preference for the earlier design and the end of the war prevented its adoption. After the War, East Germany was required by the Soviets to dispense with the old helmet design for political reasons, so the B/II was revived and adopted as the M56.