This paper toy is a chibi Prussia (human name: Gilbert Beilschmidt), the older brother of Germany, who will do anything to become strong, based on the manga / anime Hetalia: Axis Powers, the papercraft was created by smilerobinson.
Prussia once represented the Teutonic Knights, but eventually became Prussia after various stages in his life as a nation. In the modern day, he lives with Germany, though it is said that he once worked under Russia for a time. He has a fondness for picking on Austria, which causes him to get beaten up by Hungary even in the modern day. [Source: wikia]
You can download the paper craft toy here: Hetalia: Axis Powers - Chibi Prussia (Gilbert Beilschmidt) Free Paper Toy Download