The dictionary defines streitbar as follows: [constantly] prepared, having the will to, argue, with someone over something, to critically and activelydispute something; to fight for or about something, to take a stand for something or someone, a fighter; [older] prepared for battle; warrior-like, brave.
The adjective streitbar has a very positive connotation in the German language. In recalling famous persons one often reads the sentence Er war streitbar – he was streitbar.
Politicians are ever more frequently characterized as being streitbar. Streitbar does not mean that one seeks out conflicts in a negative sense. Rather, it means to stand up for ones beliefs, and not avoid serious confrontations.