KOEI Warriors is reporting that Dynasty Warriors: Strikeforce for the PSP will be available in Japan on February 26th. Thanks: Andreas. For the first time in the Dynasty Warriors series, up to four friends can join together to form a "Strikeforce". Working as a team, players can plan coordinated assaults to conquer massive armed fortresses and colossal beasts. Dynasty Warriors: Strikeforce will come to North America and Europe in 2009.