Philippine and U.S. Marines loaded in U.S. Marine Amphibious Assault Vehicles hit the beach during a mechanized assault in Amphibious Landing Exercise 15 at Naval Education and Training Command, Zambales, Luzon, Philippines, Oct. 5. PHIBLEX is an annual, bilateral training exercise conducted by members of the Armed Forces of the Philippines alongside U.S Marine and Navy Forces focused on strengthening the partnership and relationships between the two nations across a range of military operations including disaster relief and complex expeditionary operations. The U.S. Marines are with Company I, Battalion Landing Team 3rd Battalion, 5th Marines, 31st Marine Expeditionary Unit, 3rd Marine Expeditionary Brigade. The Philippine Marines are with 4th Marine Company, Battalion Landing Team - 9. - Philippine and U.S. Marines loaded in U.S. Marine Amphibious Assault Vehicles hit the beach during a mechanized assault in Amphibious Landing Exercise 15 at Naval Education and Training Command, Zambales, Luzon, Philippines, Oct. 5. PHIBLEX is an annual, bilateral training exercise conducted by members of the Armed Forces of the Philippines alongside U.S Marine and Navy Forces focused on strengthening the partnership and relationships between the two nations across a range of military operations including disaster relief and complex expeditionary operations. The U.S. Marines are with Company I, Battalion Landing Team 3rd Battalion, 5th Marines, 31st Marine Expeditionary Unit, 3rd Marine Expeditionary Brigade. The Philippine Marines are with 4th Marine Company, Battalion Landing Team - 9.