yes, and mines at sea
US bases were stationed in the Philippines. Japan took the place in '42, then lost it to the allies in '45.
In simple terms the Philippine Islands was crucial to Japan's effort to control the Southwest Pacific, seize the resource-rich Dutch East Indies, and protect its Southeast Asia flank. For the U.S, control of these islands would hurt the Japanese war effort and provide the U.S. with much needed bases near Japan, from which they could control this area, and launch attacks on Japan.
During the Spanish-American war Philippine freedom fighters were allied with the US. After that war, during the Philippine-American War (Philippine Insurrection) they wer at war with the US government. During World War2, Philippine freedom fighters were guerrillas against the Japanese occupation and supported by the US.
The Philippine American war had Rebel Filipinos fighting against other Rebel Filipinos and against the US Forces, The Philippine constabulary and the Philippine Scouts.
Ironclad ships, landmines, submarines, observation balloons, repeating guns, and grenades.
Philippine
Both sides of the conflict.
US bases were stationed in the Philippines. Japan took the place in '42, then lost it to the allies in '45.
Japan invaded the Philippine islands in their Philippine Campaign (1941-1942).
Elone Onsingett
North
I'm not sure if this was the earliest use, but there were land mines in the American Civil War. Precursors of conventional landmines appeared in the 15th century at the Battle of Agincourt in England.
PMN landmines
In simple terms the Philippine Islands was crucial to Japan's effort to control the Southwest Pacific, seize the resource-rich Dutch East Indies, and protect its Southeast Asia flank. For the U.S, control of these islands would hurt the Japanese war effort and provide the U.S. with much needed bases near Japan, from which they could control this area, and launch attacks on Japan.
North
Japan
The Spanish American War ennded and the Philippine American War began.