The Defence Act of 1925 was a defence act passed by the Swedish Riksdag on 26 May 1925 and came into force on 1 January 1928. The Act specified how the Swedish Armed Forces would operate during the coming years. The Act resulted in a policy of disarmament. The Act would remain effective until the Defence Act of 1936.
The new order of battle meant that the number of Army Divisions was decreased to 4. 17 military units were disbanded and conscription time was lowered to 140 days for most conscripts. Many conscripts were transferred to the Army Reserve. The Army and Naval air powers were combined into the Swedish Air Force.