He had missed the last seven games.
Robinson, a graduate of the U.S. Naval Academy, was among those asking Americans to present a united front in the wake of the military action against Iraq.
"I just feel that (when) we send those guys (in the military) out there, everybody has to be on the same page, like it or not," Robinson told the San Antonio-Express News. "Even if you don't agree with it, you just kinda have to be quiet."
Robinson is expected to be in uniform for Friday's game against Minnesota.
In the final season of a 14-year NBA career with the Spurs, Robinson missed six games in February with a sore right knee and lower back pain, and three games earlier in the season.
The 7-1 Robinson is averaging 9.2 points, 8.4 rebounds, and 1.8 blocks per contest for the Spurs this season. In his absence, Malik Rose and Kevin Willis have split time in the middle.
Voted as one of the NBA's 50 Greatest Players, Robinson has averaged 21.4 points and 10.7 rebounds in his career.