Certainly is!

This plane was designed to stop the americans doing something.

You get another clue for the other one :P

is the main plane a Yak of some discription?

Nope

i take it its soviet?

From the clue i thought you might have guessed its in the cold war period and is soviet :P

yeah but im never sure.

Spose it ould have been like vietnamese or something!

Ok, so the smaller one is a MiG-15 like Vulcan said. The other, however is not a Yak. What it is, is a MiG-21. :D Now for me to sift through my Soviet Era Cold War Jets, and figure out the main one.... I'll be back soon. ;)

oh lord soviets here i ve got no chance. Quickly to janes recognition guide.

As your soviet i want Mk. letter as well :P