Option 2: America
From Create Your Own Story
Ah yes, America. The home of the star-spangled banner, the US of A.
Home of many marvels of engineering, such as the M4 Sherman line, the M26 Pershing, the cute little M3 and M5 Stuart, and other armoured beasts.
Not to mention the aviation side, such as the somewhat glorious P-51 Mustang, it's sister the P-51D, the F4U Corsair, and others.
Choose your preferred route.