You don't seem to know that Germany has been involved in anti-IS operations in Syria and Iraq, as well as supporting operations in Mali, for quite a few years now.
Luftwaffe A310MRTT AAR support has been widely praised not just by German fighter bomber crews but also by other nations involved in the Sandpit Wars.
They had to leave Incirlik due to EU politics and are now elsewhere in the Middle East. I'm told that they weren't even allowed off base at Incz, which must have rather hit Basil, Pop's Leather and Mr.Rolex in the pocket - although the wives would have been spared bits of sundry brass tat and grubby carpets!