(A) Yes
(B) ** No
EXPLANATIONS BELOW
Concept note-1: -The League is generally considered to have failed in its mission to achieve disarmament, prevent war, settle disputes through diplomacy, and improve global welfare.
Concept note-2: -The League of Nations was formed to prevent a repetition of the First World War, but within two decades this effort failed. Economic depression, renewed nationalism, weakened successor states, and feelings of humiliation (particularly in Germany) eventually contributed to World War II.
Concept note-3: -By establishing a bond of solidarity between Member States, the League is considered the first attempt to build a system of collective security. This principle relied on a simple idea: an aggressor against any Member State should be considered an aggressor against all the other Member States.
Concept note-4: -The main aims of the organisation included disarmament, preventing war through collective security, settling disputes between countries through negotiation and diplomacy, and improving global welfare. The League lacked an armed force of its own to enforce any actions to achieve these aims.