0 8 , ▁with ▁a ▁further ▁move ▁to ▁France , ▁F y odor ov ▁was ▁still ▁living ▁in ▁the ▁latter ▁when ▁World ▁War ▁I ▁began . ▁On ▁ 2 1 ▁August ▁ 1 9 1 4 , ▁he ▁volunte ered ▁for ▁the ▁French ▁Foreign ▁Leg ion , ▁and ▁served ▁with ▁them ▁until ▁wounded ▁and ▁in val ided ▁from ▁inf antry ▁service . ▁After ▁pre lim inary ▁duty ▁as ▁a ▁ch auff eur , ▁he ▁became ▁a ▁pilot ▁on ▁ 2 7 ▁November ▁ 1 9 1 5 . ▁After ▁acqu iring ▁Pierre ▁Lan ero ▁as ▁his ▁mechan ic , ▁aer ial ▁observer , ▁and ▁gun ner , ▁F y odor ov ▁scored ▁three ▁aer ial ▁vict ories ▁in ▁March ▁ 1 9 1 6 ▁with ▁Lan ero ▁man ning ▁the ▁tw in ▁engine ▁Ca ud ron ▁G 4 ' s ▁guns . ▁ ▁They ▁were ▁shot ▁down ▁and ▁wounded ▁on ▁ 1 ▁April ▁ 1 9 1 6 . ▁Upon ▁recovery , ▁F y odor ov ▁w ang led ▁an ▁assignment ▁to ▁the ▁Kingdom ▁of ▁Roman ia ▁in ▁October . ▁While ▁they ▁were ▁there , ▁he ▁managed ▁a ▁transfer ▁in ▁the ▁Imperial ▁Russian ▁Air ▁Service ▁for ▁the ▁two ▁of ▁them ▁by ▁the ▁end ▁of ▁ 1 9 1 6 . ▁However , ▁F yd or ov ' s ▁st int ▁in ▁Russia ▁during ▁ 1 9 1 7 ▁was ▁un success ful ; ▁he ▁fell ▁ill ▁without ▁scoring ▁any ▁aer ial ▁vict ories . ▁By ▁the ▁time ▁he ▁recovered , ▁through ▁Lan ero