MiTasol
1st Lieutenant
However limited, it did serve in Northern Europe.
The first USAAF victory over a Luftwaffe aircraft, was by a P-40C that crippled a Fw200 in 1942 near Iceland. The Fw200 was finished off by a P-38F.
In British service, the Tomahawk was based out of England for a short time in early 1941 with the RAF ACC for low level recon and served with No. 403 Sqdn. RCAF.
So the P-40 actually served in every theater and every continent (except Antarctica) during WWII.
And a lot of them were supplied to the Russians as well and I would classify that as Northern Europe.
I also agree that it did a lot of the hard yards without the glory the later aircraft got.