On July 1st, 1867, the British North America Act united various provinces in a single Dominion of Canada. However, for the first 100 years the Canadians didn’t celebrate this date: it became more prominent the more independence Canada gained from the United Kingdom. Today it is a grand national holiday with parades, carnivals, and concerts.
From June 30th (13:00 GMT) until July 3rd (9:00 GMT), play 3 battles using British vehicles (rank III or higher, with an activity of not less than 70%) to receive the “Canada Day” decal.
Complete the task in random battles, except for Enduring Confrontation missions and [Assault] mode. Track your progress in the hangar by clicking Nickname → Achievements → Holidays → Canada Day.
“Canada Day” decal
You can find the decal in the “Holidays” tab in the Customisation menu.