(A) ** Militarism
(B) Alliances
(C) Imperialism
(D) Nationalism
EXPLANATIONS BELOW
Concept note-1: -According to the Treaty of Versailles, the Rhineland, a strip of land inside Germany bordering on France, Belgium and the Netherlands, was to be de-militarised. That is, no German troops were to be stationed inside that area or any fortifications built.
Concept note-2: -The treaty required demilitarization of the Rhineland, the loss of 13% of Germany’s prewar territories, and extensive reparation payments by Germany.
Concept note-3: -The area known as the Rhineland was a strip of German land that borders France, Belgium, and the Netherlands. This area was deemed a demilitarized zone to increase the security of France, Belgium, and the Netherlands against future German aggression.
Concept note-4: -The remilitarization and the German rearmament changed the balance of power in Europe from France and its allies towards Germany by allowing Germany to pursue a policy of aggression in Western Europe that had been blocked by the demilitarized status of the Rhineland.