Might as well give this a go. 

1. Poland.
2. France.
3. Finland.

Whether I'm assigned Poland or not, the Polish borders with Lithuania and the Soviets aren't quite accurate. Here's a map of the situation as of about a month before the date mentioned in the OP as the start of the WiR. Poland has Wilno, the West Ukrainian People's Republic has been defeated, and Poland has in general pushed further east than is shown on the map in the OP.

[img]http://upload.wikimedia.org/wikipedia/commons/d/d4/PBW_December_1919.png[/img]