Proceeding pro se and informa pauper-is, Arturo Neri Prado, Texas prisoner *263 # 1421957, appeals the district court’s dismissing his 42 U.S.C. § 1983 action as barred by res judicata (state-court action) or, alternatively, by Texas’ statute of limitations.

He does not, however, contest the res judicata ruling. Regarding the limitations ruling, Prado contends: his action is not time barred because it is subject to the ten-year limitations period applicable to claims brought under the Alien Tort Claims Act and the Torture Victim Protection Act; and the limitations period for his claim did not begin to run until 2007 when he learned the identities of the individuals involved in his 2003 arrest.

Because Prado fails to address res judi-cata, he has abandoned that issue. Yohey v. Collins, 985 F.2d 222, 224-25 (5th Cir. 1993). As a result, the dismissal stands on that basis. Accordingly, the alternative, statute-of-limitations ground for dismissal need not be reached. E.g., Capital Concepts Props. 85-1 v. Mut. First, Inc., 35 F.3d 170, 176 (5th Cir. 1994).

Prado’s appeal lacks arguable merit and is therefore dismissed as frivolous. Howard v. King, 707 F.2d 215, 220 (5th Cir. 1983); 5th Cir. R. 42.2. This dismissal, plus the district court’s dismissing under 28 U.S.C. § 1915(e), count as two strikes under § 1915(g). Adepegba v. Hammons, 103 F.3d 383, 387-88 (5th Cir. 1996). Prado is cautioned that if he accumulates three strikes under § 1915(g), he will be unable to proceed in forma pauperis in any civil action or appeal filed while he is incarcerated or detained in any facility unless he “is under imminent danger of serious physical injury”. 28 U.S.C. § 1915(g).

APPEAL DISMISSED; SANCTION WARNING ISSUED.