Germany participated in the NATO military campaign/occupation of Afghanistan, including ground forces, naval activities and special operations units. Its seems a total of 150,000 German soldiers (and police officers?) were deployed overall (not at the same time of course); of them, 62 were killed and 249 wounded:
https://en.wikipedia.org/wiki/German_Armed_Forces_casualties...
Germany was also directly involved in the NATO campaign against (former) Yugoslavia:
https://en.wikipedia.org/wiki/NATO_bombing_of_Yugoslavia
and finally, Germany hosts large contigents of US forces, including air forces likely involved in the current illegal war against Iran.
Iran, Iraq, Syria, Vietnam? Hosting US forces in Germany is participating?
To put the number of 150000 total deployes soldiers into perspective, the Bundeswehr contingent in the end had a ceiling of 5350 troops.