The CER conflict, also known as the Sino-Soviet war of 1929 was an armed conflict opposing the Chinese Northeastern Army and the Soviet Army in Manchuria. The conflict saw the use in battle of the first fully Soviet developed tank, the MS-1 (or T-18), although it was heavily inspired by the Renault FT-17.
The diorama is a recreation of a contemporary picture from the front. The tank is from Hobbyboss. The figures are from Alpine Miniatures and Stalingrad (I think), reposed and with small modifications. The dog is from Reality in Scale. 1/35.
Sino-Soviet conflict - 1929