Although the major fear was a cross channel invasion, the Allies
had only recently lost the Battle of Norway, and there were significant German
forces still positioned there. It was not inconceivable that the Nazis could launch
raids on the Scottish mainland from Norwegian bases, or even worse, launch a two-pronged
invasion of the country. That while the bulk of the British Army was engaged against
cross-channel invaders, German forces could land on the weakly defended east coast
of Scotland and sweep down.
This would not only cut Britain off from the
major naval base in Orkney and several vital ports, but would have completely
circumvented the British plans for defence. As such, the decision was taken to
build up the defences on the east Coast. The Polish Army in Exile were given the
job of defending eastern Scotland and took up their posts from the borders to
the northern coasts.
in this part of Scotland were rudimentary at best, and often the Poles spent their
first weeks in Scotland in tents before more permanent barracks could be built.
From then on they became a welcome sight to the locals, proving to be very popular
guests until they left in 1944 for the reconquest of Western Europe.
at Lunan Bay, in the shadow of a castle built to withstand Viking invaders, lie
higgledy piggledy modern defences built in 1940 by the Polish visitors in the
form of huge concrete blocks. These blocks, resembling giant sugar cubes serve
as anti-tank blocks, forming obstacles which would be too steep for German panzers
to negotiate, or if they did mange to get on top of them, would expose the lightly-armoured
bottom of the tank chassis to anti-tank weapons.