Lit., culture war; -- a name, originating with Virchow (1821 - 1902), given to a struggle between the Roman Catholic Church and the German government, chiefly over the latter's efforts to control educational and ecclesiastical appointments in the interest of the political policy of centralization. The struggle began with the passage by the Prussian Diet in May, 1873, of the so-called May laws, or Falk laws, aiming at the regulation of the clergy. Opposition eventually compelled the government to change its policy, and from 1880 to 1887 laws virtually nullifying the May laws were enacted.

a civil war, an attempt to define "us" by picking on "them

The struggle for civilization: the concept was applied within Prussia/Germany to describe the struggle between regions and religions and cultures vying for the 'perfect' state. Hitler's Mein Kampf refers to his own world view and 'struggle' and proposal for that perfect state and race.