The battalion lost 1,723 officers and men killed by 1918.
During the campaign they lost 22 officers and 398 other ranks killed.
It also lost two officers and 60 enlisted men to disease, for a total of 153.
During the 1970s, the department lost 26 officers in a span of ten years.
The Americans lost 2,086 officers and men, over 100 civilians were also casualties.
The Peruvian army lost 185 officers, and more than 3,000 soldiers died.
They withdraw after losing four officers and more men killed.
The regiment lost 4 officers and 73 men in the battle.
The force has already lost more than 300 officers in the last two years as a result of attrition.
The regiment lost 1,000 officers and 28,000 men during the war.