Talk:Barracks/@comment-175.156.114.218-20130524121211/@comment-95.90.41.110-20130524161253

Check the text:

"Like the Constructor building, your Barracks buildings now reduce training times for all troops trained at the Barracks!  Each level of each Barracks across all of your colonies contributes to your total troop training time reduction!  Your Barracks buildings must be upgraded in order to receive this new effect."

You get for each lvl 9 barrack 0,6% reduction