Kalayji

MEMORANDUM **

Razmig Kalayji, a native and citizen of Lebanon, petitions for review of the Board of Immigration Appeals’ (“BIA”) order dismissing his appeal from an immigration judge’s decision denying his application for withholding of removal. Our jurisdiction is governed by 8 U.S.C. § 1252 . We review for substantial evidence, Hakeem v. INS, 273 F.3d 812, 816 (9th Cir.2001), and we dismiss in part and deny in part the petition for review.

We lack jurisdiction to review Ka-layji’s contention that there is a pattern and practice of persecution against Christians in Lebanon because he failed to exhaust this claim before the agency. See Barron v. Ashcroft, 358 F.3d 674, 677-78 (9th Cir.2004).

Substantial evidence supports the BIA’s finding that Kalayji’s difficulties while in the Lebanese military were not on account of a protected ground, see Cruz-Navarro v. INS, 232 F.3d 1024, 1029 (9th Cir.2000), and his short detention and other harms he described were insufficient to *955 establish past persecution, see Gu v. Gonzales, 454 F.3d 1014, 1020-21 (9th Cir.2006); see also Rostomian v. INS, 210 F.3d 1088, 1089 (9th Cir.2000). Furthermore, substantial evidence supports the BIA’s…