Siri looked through the Broken werehouse hopping to find something to resemble something like a tree or decorations.

See ever since the last 20 years of this never ending war, everyone had seem to forget Christmas. So she tried to match it with her recorded data of Christmas. 

After a few hours Siri had decorated the werehouse with Christmas stuff. With half broken lights and a very wimpy tree. The resistance walked in with shock. "What is all of this?" Jaz asked. 

"It is called Christmas."  Siri replied. She showed them pictures of past Christmas and explained everything. And soon they all enjoyed a sorta peaceful Christmas.