What were the aftereffects of US not being part of LON?

Aftereffects of US not being part of LON: absence of us made even Britain less enthusiastic.in fact Britain had accepted the obligations of leagues covenant hoping that USA with her vast resources would be by her side in new enterprises. It also created an atmosphere that big powers are unwilling to co-operate, also created a sense that LON is just an assemblage of victorious imperialists and their satellite states.

LON is established under the leadership of Britain-France,as Us denied to participate in the business of it, because american senate denied to participate,since 1823 on the basis of Munro’s doctorine, Us accepted the policy to stay apart from world politics, because that time situation was different,US wasn’t wish to enter in WW1, but due to some reasons its required to enter.