Normally what you do is that you start with three tanks and...

Normally what you do is that you start with three tanks and you would use replication and you computer generate the other tanks, ... But here, they were so available I could use real tanks. It was cheaper to get real tanks in the Czech Republic than to make the fake ones that I would normally use computer generated imagery to do. In fact, we had to call NATO and warn them about that scene, because it looked like a weapons build-up in the Czech Republic.