Pacific Fighters, known in Russia as Pearl Harbor (Перл-Харбор), is a World War II Combat flight simulation game for Microsoft Windows, developed in Russia by 1C:Maddox Games and distributed by Ubisoft in 2004. It is in fact a stand-alone expansion pack of IL-2 Sturmovik, released three years earlier in 2001, also developed by 1C:Maddox Games and distributed by Ubisoft. The latest version corresponds to the IL-2 Sturmovik: 1946 compilation, distributed by Ubisoft in 2006.