The physical and mental aptitudes of the Aboriginal volunteers were held in high esteem by the Japanese military. They had twice the physical strength of Japanese troops, an outstanding sense of direction, and were highly skilled at nighttime combat because of their excellent night vision. They were highly obedient, responsible, and had an indomitable spirit.
當時被迫參戰的高砂義勇軍，其身體素質與心理素質，都受到日軍高度肯定，包括力氣是日本兵的兩倍、有良好的方向感與夜間作戰（夜視）能力、服從性高、具責任感、強悍不屈的戰鬥意識等。