Lord Mayor's Show during First World War.
Various Allied soldiers march in parade. Military marching band - may be Belgian? coming down street. French soldiers follow. Then Japanese (?). Then American marines (?). Captured German aeroplanes are driven past on flat trucks - aeroplane w/ both Iron Cross & swastika painted on side. Captured guns on truck. Another truck carries shells. Tanks drive past.
Women's auxiliary groups march. Then men on horseback; dressed in Elizabethan / medieval / etc. sort of costumes. Of course the storybook coach of the Lord Mayor of London follows. CU Lord Mayor & entourage getting out of coach. MS Lord Mayor & others in robes all stand facing camera.