<sod>U.S. government lawyers have considered if the United States is legally a "[[co-belligerent]]" in the conflict, but have not reached a conclusion as of September 2016. Such a finding would oblige the U.S. to investigate allegations of war crimes by the Saudi coalition, and U.S. military personnel could be subject to prosecution.<ref name=reuters-20161010>{{cite news |url=http://www.reuters.com/article/us-usa-saudi-yemen-idUSKCN12A0BQ |title=Exclusive: As Saudis bombed Yemen, U.S. worried about legal blowback |author=Warren Strobel, Jonathan Landay |publisher=Reuters |date=10 October 2016 |accessdate=10 October 2016}}</ref><ref name=justsecurity-20150327>{{cite web |url=https://www.justsecurity.org/21524/international-law-saudi-operation-storm-resolve-yemen/ |title=International Law on the Saudi-Led Military Operations in Yemen |author=Nathalie Weizmann |publisher=Just Security |date=27 March 2015 |accessdate=10 October 2016}}</ref><eod>
<sod>[[File:Operation Inherent Resolve 150413-N-HD510-024.jpg|thumb|U.S. Navy has actively participated in the Saudi-led naval blockade.<ref>"[http://www.usatoday.com/story/news/world/2015/04/20/carrier-intercepts-iranian-arms/26082755/ U.S. carrier moving off coast of Yemen to block Iranian arms shipments]". USA Today. 20 April 2015.</ref>]]<eod>