Tulanealum, I don't know specifically if anything from the Philippines (1898 - 1913 t include the Moros) filtered directly into army doictrine. My suspicion is that its did but indirectly as we did not publish COIN/Small Wars until post WWII. Some of that came from the Philippines but mainly from the American and Filipino guerrilla war against the Japanese.

Bill, I don't disagree with your observations about how we interpret and often employ doctrine in practice. But some of that is division of labor. For example, JSOC played the intel driven kinetic role of targetted strikes in both Iraq and A'stan. This was the role played in El Salvador (about which we wrote 100-20) by the Grupo de Operaciones especiales (GOE). We took some of that from Sir Robert Thompson.

Best

JohnT