Modern Bundeswehr camouflage, rifle and equipment, First World War German flag, and Second World War collar and sleeve emblems, interesting mix.
The collar emblems are in use on dress uniforms only in the Bundeswehr and colour coded to show which parts of the army and air force you belong to, the Navy does not have them though. And for the sleeve ribbon, it is also part of some units dress uniform, like the tactical squadrons of the airforce 31 "Boelcke" 51 "Immelmann" 71 "Richthofen" and 73 "Steinhoff".