The United States Army celebrates its 240th birthday this year. From the original Continental Army to the global power it is today, the army has gone through a lot of different styles in 240 years. IJ Review is celebrating the army with this video showing all the uniforms American soldiers have worn since the Revolutionary War. Personally, we think the army should have stuck with wigs. But either way, this video is an awesome glimpse at how far the army -- and America -- has come in 240 years.