Sich Riflemen
With the establishment of Hetmanate of Pavlo Skoropadsky the Sich Riflemen refused to serve him and were disarmed by the German forces that supported the hetman . 
<triplet> Hetmanate <subj> Pavlo Skoropadsky <obj> head of state <triplet> Pavlo Skoropadsky <subj> Hetmanate <obj> allegiance