Passage: Tanner assists the Wolverines in organizing raids against the Soviets. Soon after, in a visit to the front line, Tanner and Aardvark are killed in the crossfire of a tank battle. Daryl is caught by the Soviets after being turned in by his collaborating father. Using threats of torture, KGB officers force Daryl to swallow a tracking device, then release him to rejoin the guerrillas. Spetsnaz are sent into the mountains carrying portable radio triangulation equipment, but are ambushed by the Wolverines. The group trace the source of the signal to Daryl, who confesses and pleads for mercy, but is executed by Robert, along with a captured Soviet soldier.

Question: What group did Tanner assist to raid the Soviets?
Wolverines