President Roosevelt reviews 100,000 soldiers in mimic warfare and announces a significant US-Canada defense scheme. He spends six hours visiting Army and National Guard divisions, giving a presidential nod to unprecedented war games. Roosevelt and Canadian Prime Minister Mackenzie King, along with War Secretary Stimson, agree to form a joint Board of Defense for Canada and the US, marking a historic collaboration.

What type of warfare was engaged by the 100,000 soldiers?

What significant announcement did President Roosevelt make?

How long did Mr. Roosevelt spend visiting with the Army and National Guard?

Who were the key figures present during the meeting with Prime Minister Mackenzie King?

What was the purpose of the joint Board formed for Canada and the United States?