(A) Nationalism
(B) Militarism
(C) Imperialism
(D) ** Alliance
EXPLANATIONS BELOW
Concept note-1: -Alliances are formal agreements between two or more nations. In national defense, they’re promises that each nation will support the other, particularly during war.
Concept note-2: -Understanding the Difference Between a Friendship and An Alliance. The difference is what the relationship is built on. Friendship is built on love, support, and care. An alliance is built on benefits.
Concept note-3: -Taiwan, Uganda and Costa Rica were the most friendly countries, while Czech Republic, Saudi Arabia, and Kuwait were found to be the least friendly.