Ultimate X-Men, Vol. 1 #84 (2007)

Sentinels, Part 1
The team of X-Men Bishop is putting together now includes Wolverine, and they're off to recruit one more, who now finds herself at Xavier's. The conversation is interrupted by a report on the news of the Mutant Liberation Front (acting under Stryfe's leadership) attacking city hall and getting repelled by the new Sentinels. Bishop's team goes into action against them, while Scott's group decides to sit it out.
Release Date: 2007