['< sod > u. s. government lawyers have considered if the united states is legally a " [ [ co - belligerent ] ] " in pursuing the conflict, but have not yet 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. thomson reuters. com / article / us - usa - saudi - yemen - iduskcn12a0bq | title = exclusive : as saudis bombed yemen, u. s. worried about legal blowback | author = warren mark strobel, jonathan landay | publisher = reuters | date = 10 october 2016 | accessdate = 10 october 2016 } } < / ref > < ref name = justsecurity - 20150327 > { { cite web | url = https : / / from www. justsecurity. org / 21524 / international - law - saudi - operation - storm - resolve - yemen / | title = international law on the saudi - led us 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 - counter arms / 26082755 / u. s. carrier moving off coast port of yemen to block further iranian arms shipments ] ". usa today. 20 15 april 2015. < / ref > ] ] < eod >']