Christopher Kubiczech came from an ancestry of German-Austrians from the borders between Germany, Austria, and Czechoslovakia who had moved to America pre-WW2. Chris at the age of 24, was the first to move back to Germany in 2014. In Germany, with his education in engineering, in which he entered a job constructing infrastructure and suburbs. After the first news broke of the crisis in 2017, Christopher enlisted to help protect his new homeland, being put into a local militia on accordance of his 'recent' immigration. Though military life was not his forte, Chris was shocked to experience the lack of the military's ability to kill the infection. Eventually, while on patrol, Chris' unit suddenly lost all communication with their home base. Going back showed that vengeful locals, angry about recent shootings of 'infected' lead to an armed assault and disbandment of the local garrison. With no way of returning to any other unit easily, Chris' unit went their own ways, with Chris going east, away from heavily populated Europe. Going as far as abandoned vehicles could get him.
Side note: Chris' rank before heading east was Gefreiter (Private First Class).