CAB /24/ 139
Report on Revolutionary organizations in the UK / Special Branch / Oct 5th 1922
Communists were also instructed that in the event of war they were on no account to take up a hostile attitude or one of pacifism, but to carry propaganda in the Army and if necessary, fire in the air.
There has been some propaganda in favour of obstructing the transport of troops and of war material, but the result has, so far, been negligible.
On September 26th the Poplar Unemployed passed a resolution to picket all ships in the east India dock which were being used for transport of ammunition to the Near East