Admiral Julio Leiva Molina directs the around 25,000-person Chilean Navy, including 2,500 Marines. Of the fleet of 29 surface vessels, only eight are operational major combatants (frigates). Those ships are based in Valparaíso. The Navy operates its own aircraft for transport and patrol; there are no Navy fighter or bomber aircraft. The Navy also operates four submarines based in Talcahuano.