Day of an American Battle-26SEP1918-Meuse-Argonne Mystery Cache

This is a cache in a series of caches that highlights some of the Battles fought by American Forces.  Hopefully as you go thru these, you will either refresh a memory or learn something new. 

Refer to Day of an American Battle-19Oct2007 GC  for a more detailed description

The Meuse-Argonne Offensive, also known as the Maas-Argonne Offensive and the Battle of the Argonne Forest, was a part of the final Allied offensive of World War I that stretched along the entire Western Front. It was fought from September 26, 1918, until the Armistice on November 11, a total of 47 days. The battle was the largest in United States military history, involving 1.2 million American soldiers, and was one of a series of Allied attacks known as the Hundred Days Offensive, which brought the war to an end. The Meuse-Argonne was the principal engagement of the American Expeditionary Forces during the First World War.

The cache can be found at  N34 3x.x55 w84 06.121

X= The day of the month of the end of the third phase; plus 12