1. The Battle Of Britain
Many Canadian pilots served in Britain's air force and provided crucial air support for Britain, during the battle of Britain. The Germans used blitz bombing tactics on British cities, during the summer of 1940.They were quick and effective but using an advanced radar system, the RAF fighter planes were able to shoot down German aircrafts and keep control of Britain.

6. Royal Canadian Navy Began the war with 13 vessels:
6 destroyers
3,500 personnel
At the end of the war the RCN was the third largest navy in the world.
373 fighting ships
over 110,000 members, all of whom were volunteers
including 6,500 women who served in the Women's Royal Canadian Naval Services.
The main responsibility of the RCN was to escort of merchant ship convoys.
The first convoy sailed from Halifax on September 16, 1939
By mid-1942, the RCN, with support from the RCAF, was providing nearly half the convoy escorts, and afterwards carried out the main share of escort duty.
Approximately 2,000 members of the RCN died during the war, and 24 RCN vessels were sunk.
Canadian aircraft and ships, alone or in consort with other ships or aircraft, sank 50 U-boats.

12. Allied shipping sunk by U-Boat