It will be impossible for us here to consider in detail the great movements of non-cooperation on which Gandhi's followers have embarked in order to throw off British rule. In 1919 and again in the struggle of 1920-1922, Gandhi felt forced to call off the non-cooperation campaigns because the people, who were not sufficiently prepared, fell back upon violence.[80] In the struggle in 1930, Gandhi laid down more definite rules for Satyagrahis, forbidding them to harbor anger, or to offer any physical resistance or to insult their opponents, although they must refuse to do any act forbidden to them by the movement even at the cost of great suffering.[81] The movement ended in a compromise agreement with the British, but the terms of the agreement were never completely carried out. Repressive measures and the imprisonment of Gandhi checked the non-cooperation movement during the present war, at least temporarily.