 Prototype V-2 rocket launches were delayed for about two months, testing and production was dispersed and the morale of the German survivors was severely affected.To evade the restrictions of the Treaty of Versailles (1919) the "Reichswehr" (the post-war German army from 1919 to 1935) studied the possibility of using rockets to compensate for the limited amount of heavy artillery allowed by the treaty.The head of the ballistics and Munitions Section, Colonel Becker suggested that short-range anti-aircraft rockets be designed and accurate, longer-range missiles should be produced to carry gas or high explosives.