Original sentence: The seemingly low cost in battlefield casualties for the Americans in the Mindanao campaign stemmed, aside from the skill of the Eighth Army planners and leaders, from increasing assistance by Filipino guerrillas, which in military terms, constituted a valuable "force multiplier" for the Eighth Army units
Edited sentence: The seemingly low cost in battlefield casualties for the Americans in the Mindanao campaign stemmed, aside from the overall brilliance and skill of the Eighth Army planners and leaders, from increasing assistance by Filipino guerrillas, which in military terms, constituted a valuable "force multiplier" for the Eighth Army units