From the post:
Stripes is our second book to expand on the forces that came with original Team Yankee rulebook. The book covers the US forces in Germany in August 1985, more specifically the 1st Armored Division, 82nd Airborne Division, and the 2nd Marine Division.
Stripes substantially expands on the forces available to the US Team Yankee player, as well as adding a bunch extra options for those who haven't been tempted by the Americans yet.
Stripes contains all the US force options found in the original Team Yankee rulebook, the M1 Abrams Armored Combat Team and M113 Mech Combat Team, with additional units, as well as new formations.