During the war the Allies dropped propaganda leaflets stressing that the Japanese issued money would be valueless when Japan surrendered. This tactic was suggested by Japanese policy makers as one the reasons for the currencies falling value as Japanese defeats increased. Although a price freeze was put in place in February 1942, by the end of the war prices in Malaya were 11,000 times higher than at the start of the war. Monthly inflation reached over 40% in August 1945. Counterfeiting of the currency was also rife with both the British Special Operations Executive (SOE) printing $10 notes and $1 notes and the American Office of Strategic Services (OSS) printing $10 notes.