Set a default Billing Country

Another CRM integration issue. We are US-based and don't plan to be international any time soon, so we have CRM set up without a billing country. All our addresses don't specify the country for obvious reasons. Unfortunately, subscriptions requires a country and this syncs over as a blank field. Therefore, every time we do something in subscriptions we have to select "U.S.A" from the dropdown list of all countries in the world. The list isn't very intelligent so you have to type it out with the dots (grammatically correct, but very cumbersome). Any way to force a default to select "U.S.A" every time?

Thanks,

Alastair

P.S. Bit of trivia: Not sure if this is an easter egg, but after typing out "U", ".", "S", ".", "A", in the country dropdown you are left with two options: "U.S.A" and "Russia". Not sure if that's a "War Games" Movie reference... "David Lightman: [Looks at Jennifer] I'll be the Russians!"