Take the "Hydra" for example. This radio communication became the direct line between Churchill and Rosevelt when they wanted to speak directly to each other to plan their next move.
It was originally build to unite Britain and the US when US was held back from direct intervention in the war by the Neutrality Act until December 7th, 1941 when Pearl Harbour happened.
It was also a link between Canada and Britain because most of the soldiers were eaither Canadian citizens or British soldiers. The camp was established by British Security Co-Ordination (BSC) and the Government of Canada.
Soldiers (at first mostly Canadian and British, later on also American) were trained for specific missions behind enemy lines. Some missions included recruitment of citizens into the rebelion movement. This usually took around 10 weeks of intense training.
Though out of 500 missions only about 5% were sucessfull, this still impacted the war because the German army had to send whole departments throughout the war to hunt down the Allience's spies.
These soldiers were both male and female and were usually eaither people who ran from europe and were willing to go back or of citizens with suburb language skills. The men and women were usually between 19 and 22 (at an age when you still don't realize the full horror) and had about a 50/50 chance of survivng. Most of them didn't and their names aren't remembered but they made a difference (an example would be when three Camp X instructors went to France before D Day and blew up the Germans' most important Radar instalation saving thousands of lives).
"Camp X was part of Canada's contribution to the war". Something like this was written in the unfinished manuscript of Chief Recruitment Officer of the Canadian Division of the BSC.
Opened a day before Pearl Harbour, this camp is important to Canadians because had Pearl Harbour happened six months earlier, Camp X would never have exsisted. This would have taken away part of Canada's history and dimmed its accomplishments in the war.
Because of the HYDRA radio system installed in Camp X, Canada played a huge role in organizing direct calls between England and USA. Therefore, Camp X was a huge contribution once again from Canada's side.