(A) treaties
(B) ** alliances
(C) clubs
(D) democracies
EXPLANATIONS BELOW
Concept note-1: -alliance, in international relations, a formal agreement between two or more states for mutual support in case of war.
Concept note-2: -allies. an alliance of nations joining together to fight a common enemy. axis, bloc. a group of countries in special alliance. Allies.
Concept note-3: -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-4: -1 association; coalition, combination, bloc; partnership; affiliation. 2 pact, compact. See synonyms for alliance on Thesaurus.com.
Concept note-5: -The Triple Alliance was an agreement between the countries of Germany, Austria-Hungary and Italy and the Triple Entente was an agreement between the countries of England, France, and Russia.