Catalina Island was occupied 
... that in 1972, Catalina Island was occupied by the Brown Berets, who claimed that the territory rightfully belonged to Mexico?
... that in 1972, <b id="mwBPI"><a href="./Occupation_of_Catalina_Island" id="mwBPM" rel="mw:WikiLink" title="Occupation of Catalina Island">Catalina Island was occupied</a> </b> by the <a href="./Brown_Berets" id="mwBPQ" rel="mw:WikiLink" title="Brown Berets">Brown Berets</a>, who claimed that the territory rightfully belonged to Mexico?