UNSUCCESSFUL!
The more the League failed in solving disputes, the less people trusted it. In the end, everybody just ignored it.

The absence of the Great Powers weakened the League, as the USA isolated itself from the League and Germany and Russia weren't allowed to join at the start.

The League was doomed right from the start; it hadn't been made strong enough. In the 1930's it had just been impossible to keep it secret for any longer.

Sanctions never seemed to work - moral condemnation wasn't effective, economic sanctions were always flawed and military sanctions were an absolute failure.

The Leading countries (Britain &France;) han never really believed in the idea of the league, and were more interested in rebuilding its trade(B) and Germany(F)

ECONOMIC SANCTIONS:
Without the USA taking part it wouldn’t work as it was a major part of the trade all around the world. Therefore the LoN couldn’t enforce

THE GREAT DEPRESSION: The world-wide Great Depression weakened the League in the 1930s. At a time of economic crisis governments were less interested in what

In the 20's the League had to solve disputes between countries with little power, but in the 30's the League had to face Italy and Japan.

the world-wide Depression made countries try to get more land and power. They were worried about themselves, not about world peace.

The League was muddled, so it took ages to do anything. Members couldn’t agree – but decisions had to be UNANIMOUS .This paralysed and slowed the League.

The Absence of the USA - the fact that the US did not join the league weakened its moral authority and power to enforce its decisions.