A U.S. M142 High Mobility Artillery Rocket System (HIMARS) fires a missile during a joint military drill between the Philippines and the U.S. called Salaknib in Laur, Nueva Ecija province, northern Philippines.
1/8A U.S. M142 High Mobility Artillery Rocket System (HIMARS) fires a missile during a joint military drill between the Philippines and the U.S. called Salaknib in Laur, Nueva Ecija province, northern Philippines.
© AP Photo / Aaron FavilaA Filipino and US soldier fire their rifles during a joint military drill dubbed Salaknib at Fort Magsaysay, Nueva Ecija province, northern Philippines.

A Filipino and US soldier fire their rifles during a joint military drill dubbed Salaknib at Fort Magsaysay, Nueva Ecija province, northern Philippines.
© AP Photo / Aaron FavilaA Filipino soldier fires an AT-4 84 mm anti-tank rocket with the guidance of a US soldier during a joint military drill between the Philippines and the US called Salaknib at Fort Magsaysay, Nueva Ecija province, northern Philippines.

A Filipino soldier fires an AT-4 84 mm anti-tank rocket with the guidance of a US soldier during a joint military drill between the Philippines and the US called Salaknib at Fort Magsaysay, Nueva Ecija province, northern Philippines.
© AP Photo / Aaron FavilaPhilippine Army Artillery Regiment Commander Anthony Coronel, left, returns a salute from a US soldier during a joint military drill called Salaknib in Laur, Nueva Ecija province, northern Philippines.

Philippine Army Artillery Regiment Commander Anthony Coronel, left, returns a salute from a US soldier during a joint military drill called Salaknib in Laur, Nueva Ecija province, northern Philippines.
© AP Photo / Aaron FavilaA Filipino and US soldier participate during a joint military drill called Salaknib at Fort Magsaysay, Nueva Ecija province, northern Philippines.

A Filipino and US soldier participate during a joint military drill called Salaknib at Fort Magsaysay, Nueva Ecija province, northern Philippines.
© AP Photo / Aaron FavilaU.S. soldiers inspect a US M142 High Mobility Artillery Rocket System (HIMARS) that caught fire after firing missiles during a joint military drill called Salaknib in Laur, Nueva Ecija province, northern Philippines.

U.S. soldiers inspect a US M142 High Mobility Artillery Rocket System (HIMARS) that caught fire after firing missiles during a joint military drill called Salaknib in Laur, Nueva Ecija province, northern Philippines.
© AP Photo / Aaron FavilaA Filipino and US soldier participate during a joint military drill dubbed Salaknib at Fort Magsaysay, Nueva Ecija province, northern Philippines.

A Filipino and US soldier participate during a joint military drill dubbed Salaknib at Fort Magsaysay, Nueva Ecija province, northern Philippines.
© AP Photo / Aaron FavilaA US soldier extinguishes a blaze on one of the tubes of a U.S. M142 High Mobility Artillery Rocket System (HIMARS) after firing missiles during a joint military drill between the Philippines and the U.S. called Salaknib at Laur, Nueva Ecija province, northern Philippines.

A US soldier extinguishes a blaze on one of the tubes of a U.S. M142 High Mobility Artillery Rocket System (HIMARS) after firing missiles during a joint military drill between the Philippines and the U.S. called Salaknib at Laur, Nueva Ecija province, northern Philippines.