František Fajtl
...that Czech Second World War fighter pilot František Fajtl briefly flew for the French Air Force before commanding units in the Royal Air Force and then a Czechoslovak regiment formed by the Soviet Union?
...that <a class="mw-disambig" href="./Czech" id="mwBb4" rel="mw:WikiLink" title="Czech">Czech</a> <a class="mw-redirect" href="./Second_World_War" id="mwBb8" rel="mw:WikiLink" title="Second World War">Second World War</a> <a href="./Fighter_aircraft" id="mwBcA" rel="mw:WikiLink" title="Fighter aircraft">fighter pilot</a> <b id="mwBcE"><a href="./František_Fajtl" id="mwBcI" rel="mw:WikiLink" title="František Fajtl">František Fajtl</a></b> briefly flew for the <a class="mw-redirect" href="./French_Air_Force" id="mwBcM" rel="mw:WikiLink" title="French Air Force">French Air Force</a> before commanding units in the <a href="./Royal_Air_Force" id="mwBcQ" rel="mw:WikiLink" title="Royal Air Force">Royal Air Force</a> and then a <a class="mw-disambig" href="./Czechoslovak" id="mwBcU" rel="mw:WikiLink" title="Czechoslovak">Czechoslovak</a> regiment formed by the <a href="./Soviet_Union" id="mwBcY" rel="mw:WikiLink" title="Soviet Union">Soviet Union</a>?