The Chilean Army
is the land arm of the Military of Chile
. The Army was
created on December, 2 of 1810 by order of the First National Meeting of Government of Chile
When Chile sided with the Central Powers in 1915, she and Paraguay launched an invasion of Argentina. However, toward the end of 1916, this war was going badly, prompting the US Navy to send help.
The fighting between Chile and Argentina continued after the Great War ended on other continents, before finally petering out.