This game covers a hypothetical Soviet invasion of Japan in an alternate 1995 where World War 3 has occurred.
It was published as the 4th game of the Series: SS (Sho-Kikaku) in 1988 and with Command Magazine Japan #181 in 2025.
Note: This is not the part of the the "Hokkaido" or "JSDF (Japanese self defense force)" trilogy of games (Seventh Armored Division: Red Typhoon ‘95 , Northern Army, and Fifth Division: Soviet Coming from our Lost Territory).