There were a couple of posts about the Philippines . Here's a painting of the last known horse cavalry charge in US Army history. The attack was made by a platoon of the US 26th Cavalry ( Philippine Scouts ) on 16 Jan 1942.
Edwin Price Ramsey - Official Website
The map and letter on the right can be clicked for more details. The Lt was an interesting guy. He was very skinny by the end of the war and later worked in Japanas an aircraft salesman.