gravelortian part 13

There were 20 army units on the first of November

17!        11/9/11
             On the 9th of November there were 17 left

16!        11/10/11
             16 left on the 10th
15         11/11/11
             Fifteen remained on the 11th
13         11/12/11
             Then on November 12th there were only 13 remaining
12         11/13/11
             12 on the 13th

11!        11/14/11
10!        11/15/11
9           11/16/11
8           11/18/11
6           11/19/11

5           11/20/11
4           11/21/11
2           11/23/11
1           11/24/11
0!          11/25/11

12/21/2011 Upon further investigation two soldiers were found

Then on January 25th, 2012 a number of soldiers were discovered.

They weren't moving.

A month later 2/29/2012, one solider still remained.

4/25/2012

0 soliders. The armies were all gone. Withdrawal was complete.