Did The United States Send Any Troops To Protect Mexico or Canada During WWII?

Canada was part of the British Commonwealth and was at war from September, 1939, for over two years before the US got involved. Overeager young Americans crossed the border and enlisted in Canada's army, and especially in the Air Force.

Transatlantic shipping was done in convoys to minimize the U-Boat menace. Almost all these went to and from Halifax, Nova Scotia.

The AlCan Highway was built from Saskatchewan to Alaska, to provide a land route to supply American troops in Alaska. This was a wartime project carried through by American service and engineering troops. The Japanese actually landed and took two basically uninhabited Aleutian Islands as a diversion to their attempt to capture Midway in the summer of 1942. There was a campaign to retake these in 1943, which involved heavy fighting on Attu, after which Kiska was abandoned by the Japanese.

Neither the Japanese nor the Germans had any designs or plans to even raid in Canada or Mexico, let alone mount any serious attack or invasion.

The Panama Canal Zone was American territory though (John McCain was born there). The Canal had been built to facilitate the movement of naval vessels between Atlantic and Pacific. There was great anxiety about the Canal through the first several years of the war, mainly from fear that the Japanese would mount a carrier based raid against the Canal and bomb the locks, rendering the Canal unusable probably for years. There were large contingents of troops and aircraft maintained there throughout the war guarding against this possibility. The Japanese actually built two or three submarines which had a huge bulge on the topside, forward of the conning tower, which could house a seaplane capable of carrying bombs, with the intention of trying to surface these within range of the Canal and attempt to bomb the locks, but the plan was never carried through.

The Nazis made several attempts to establish small groups for weather forecasting on Greenland. This was actually very important because the prevailing weather over Europe comes from west to east, from over the Atlantic, and the Germans were cut off from all information, unless they could establish some outposts to radio in reports. Triangulating these radio communications helped to track these groups down.

Prior to US involvement in the war, the British were keeping a brigade of infantry in Iceland, to forestall any German attempt to seize this strategically located island. In the summer of 1941 the US sent a regiment of Marines to Iceland to replace the British Army troops, allowing them to go fight elsewhere. These were the only US Marines deployed anywhere outside the Pacific during the war (other than as part of the ship's company on capital ships).

No. The US did form units to guard its own coast, but even those formations were thinned out quite a bit as the war went on. The main defense of the Continent was the US Navy, after all. Any seruious invasion would have required many, many ships, and the best way to fight that would have been with sub and surface combatants and land-based long range bombers.

Moreover, both Canada and Mexico (eventually) were allies, and had their own armed forces to defend their shores.

No the U. S. nonetheless leads Canada in industry. the U. S. dollar is falling because of the oil usually used. i think of the if 3 governments merger a union we can bypass lower back to the top of the line. that isn't any longer plenty that Canada's dollar is surpassing the U. S. dollar however the U. S. dollar is falling against maximum considerable currencies even the yen. that is only a count of time nonetheless until eventually q4 would be considered world huge because of the fact the oil will become greater high priced to drill and pump. the U. S. has plenty activity in any Gold holdings now because of the fact maximum currencies will bypass lower back to this top of the line because of the fact the oil keeps to run out. considerable investors are already paying for up useful metals because of the fact they be attentive to the place that is heading.

NO reason to. No vulnerability existed. Surely you realize that weapons of today, did not exist back then almost 50 years ago. Or, maybe you do not.

THey were sovereign nations, able to protect themselves.

We had troops in Alaska that would protect Canada from the Japanese, and as far as Mexico goes, they weren't any type of ally for the U.S. at any time, in any war.... including today.

actually we stood our own ground and sent troops to guard your shores.