And has him the autority to conduct foreign -militar- politics without the King's approval?
I think there is a language barrier here. Mackenzie King is the Prime Minister, who is answerable to no higher authority on foreign affairs. Tweedsmuir is a figurehead who rubber-stamps whatever the Prime Minister asks. Period.
I thought that, as a Dominion, the government was ultimately answerable to the Crown
The Government is answerable.
The general answer is : Leave us alone you shmuck. We'll let you know when we have an Olympics or World Cup you need to open.
Tojo wanted to secure Japan's northern flank. This reminds me of a post I had on here four years ago called The Aleutians War. In which I postulated a
Soviet invasion of Alaska. Attu had a large Japanese garrison on it and was
wiped out in May 1943 in a suicidal banzai charge. Kiska, the other island in
the Aleutians, was lightly defended. The garrison there was evacuated under
cover of fog OTL. Now what if the Japanese on Attu were able to drive the
ill-prepared U.S. Army troops, (who BTW, were trained for desert warfare),
back into the North Pacific?
I thought that, as a Dominion, the government was ultimately answerable to the Crown
No Mailinutile, the Governor General in all of the Dominions was a figurehead with Zero power, England did not have a say in their government or foreign policy.
To give you an example of how this ran, Ireland was a Dominion during World War Two, remained neutral and had an ambassador in Berlin accredited by the King (George VI).
Now this isn’t a big secret, a quick search on the net will find you this information, try steering away from Wikipedia though.
In most parliamentary states the PM is answerable to an higher authority who does not usually interfere with the ordinary administration, but has a sort of "veto" option on important matters (such as war).