MARRIED OVERSEAS/ PHILIPPINES

MY HUSBAND AND I WERE MARRIED IN THE PHILIPPINES, BUT I AM A US CITIZEN, MY HUSBAND ARE STILL IN THE PHILIPPINES AND HE IS A FILIPINO CITIZEN, OUR MARIAGE IS NOT WORKING OUT!! I WOULD LIKE TO FILE FOR A DIVORCE HOW AM I GOING TO DO THAT? SINCE THAT IM HERE IN US AND HE'S IN PHILIPPINES??WE HAVE BEEN MARRIED FOR 5 YEARS AND HAVEN'T SEEN HIM FOR 4 YEARS, NO COMMUNICATION AT ALL, WOULD THAT HELP??