The Blind Soldiers.

Set in a rural Mindanao, as the Japanese invasion intensifies, five men from the Teduray tribe of Cotabato enlisted in the United States of Armed Forces in the Far East (USAFFE) during the World War Two. What starts as a noble intention soon turns out to be a nightmare when they realized the magnitude of the war they signed up for, compounding their struggle is the fact that they are illiterates.