USSR-Japanese war was declared on the 8th of August, 1945.
In my posts I meant that it is hard to understand if a ship belongs to the enemy or not. For example, Italy first entered the war together with Germany, then continued against it. The same difficulties is with Finland or Brazil, for example. Especially when playing for U-Boats. You meet a USA ship in 1940... Is it the enemy or not?...
I found that GWX team added such useful table to the game in SH3: you see the flag, you recognize the country and look at the date - it becomes clear if it is enemy or not.
P.S. Sorry for my English, fellows