The Ustaše received the most funds from Mussolini, who also supplied this group with an Italian headquarters that changed location whenever Yugoslavia managed to track it down. Camps for training terrorists and saboteurs were set up in Italy, chiefly at Brescia and Borgotaro. An armed insurrection was attempted in 1933, when the Ustaše, armed by the Italians, attempted to invade Yugoslavia by crossing the Adriatic Sea in motorboats. This was unsuccessful, but its lack of success probably was instrumental in the decision to assassinate King Alexander I of Yugoslavia.