Which of these weaknesses of the league was the most important the failure of disarmament the abyssinian crisis the manchurian crisis?

I believe that it was the Manchurian crisis, it showed everyone that a strong minded country could overpower the league. Italy took alot of notice of Manchuria and noticed the league could do nothing. This is why Italy did what they did because they knew the league was powerless. Maybe without the Manchurian crisis, Mussolini would not have acted the way that he did.

The Manchurian Crisis (1931) I think shows worldwide that the League of Nation cannot really handle tough job and anything involving major countries. It shows how they are weak and ineffective in dealing such tension.

Disarmament Conference (1932), well it showed how LON cannot get involve and interfere with. They basically didn't do anything and because of the failure, countries began re-arming .

I think Abyssinian Crisis was the climax and the reason was because we see how two powerful country, Britain and France going behind the back of LON and created the Hoare-Laval pact with Mussolini (give 2/3 of Abyssinia to Italy.) It was leaked and people were horrified and disgusted of how they would back stab.

I think its the Abyssinian Crisis :)