imagine that Soviets were actually good allies
You think that the Soviet army was some historical entity without any real nations behind it. Many believe that the Soviet army was made of Russians and nobody else.
In total, the number of ethnic Ukrainians that fought in the ranks of the Soviet Army is estimated from 4.5 million to 7 million.[d] The pro-Soviet partisan guerilla resistance in Ukraine is estimated to number at 47,800 from the start of occupation to 500,000 at its peak in 1944
It makes 20-25% from the total number of all conscripted soldiers (around 29 millions).
Interesting is that Yalta is mentioned so often. At Yalta conference the territories occupied by Poland from 1920 till 1939 and by Nazi Germany from 1941 till 1944 were recovered by joined forces, where Ukrainians made a very significant part. It is not like somebody signed a paper and poor north Poles remained crying as always in the corner. Ukrainians poured their blood liberating their land. Strangely enough you didn't manage to liberate your own country and now dare to jump around like little brats and demand something ;) Allied forces did you a favor in the West, your government was graciously accepted by the British and the concentration camps inmates + your land were freed with the help of the Soviet army in the East. The problem with some kids around here is that your are not ever satisfied. You helped Germans to rip Czechoslovakia apart, starting WW2 in October 1938, not in September 1939. You wanted Vilnius and surrounding territories from Lithuania in 1919-1920, you issued 2!!!!! ultimatums aimed to steal other countries' lands:
The 1938 Polish ultimatum to Lithuania was an ultimatum delivered to Lithuania by Poland on March 17, 1938...The establishment of diplomatic relations would mean a de facto renunciation of Lithuanian claims to the region containing its historic capital, Vilnius
On September 27 (1938 - the same year!!!), seeing that Czechoslovakia was in dire straits with Nazi troops readying to invade, Poland issued an ultimatum, demanding that Czechoslovakia hand over its Tesin (Teschen) district.
The same happened in L'viv in Ukraine. (No ultimatum, though :( just usual stealing spree)
Immediately after capturing the city, in the end of November, Polish forces as well as common criminals looted the Jewish and Ukrainian quarters of the city.
Wow, quite a country ;)
Yehh, keep on jumping Ultimators :)