As lame it may sound...we were the "lean green fighting machine". Now, no woodland BDUs...(I know...ACU). No green class A's.
Are we still lean? Not so much green.
I liked wearing green fatigues "back in the day". Big Blue went with the woodland BDU in 88, phasing out green fatigues in 1991. BDUs were made for mass-issue when we were fighting the commie hoards in Europe in a chemical environment so they came in sizes like Medium-Regular, small-short, etc. I retired before that horrid ABU got inflicted on the USAF. We changed service dress uniforms in the 90s (when Skelator McPeak was CSAF and pretty much wrecked everything), then again (somewhat) when McPeak went off to where ever he went off to.