Question: What military branch did 2013 All-Pac-12 star Pat Tillman enlist to in 2002?
Sentence (from "2013 All-Pac-12 Conference football team"): The 2013 All-Pac-12 Conference football team consists of American football players chosen by various organizations for All-Pac-12 honors for the 2013 Pac-12 season.
Relevant evidence: Yes