text: However , Triapitsyn began to round up and execute White Movement supporters , the only force holding his hand being the small Japanese garrison .
simplified: However , Triapitsyn began rounding up all of his forces and deploying White Army supporters , the only force cooperating , the small Japanese garrison . He then demanded that the Japanese garrison disarmâ `` remove all their weapons they are holding , sure that the small Japanese force would not agree with his request .