ans ▁refused ▁to ▁comprom ise . ▁V ot ers ▁in ▁ 1 9 2 0 ▁showed ▁little ▁support ▁for ▁the ▁League , ▁and ▁the ▁U . S . ▁never ▁joined ▁it . ▁Peace ▁was ▁a ▁major ▁political ▁theme ▁in ▁the ▁ 1 9 2 0 s ▁( es pecially ▁because ▁women ▁were ▁now ▁voting ). ▁Under ▁the ▁Hard ing ▁administration , ▁the ▁Washington ▁Naval ▁Conference ▁of ▁ 1 9 2 2 ▁achieved ▁significant ▁naval ▁dis arm ament ▁for ▁ten ▁years . ▁ ▁The ▁Ro aring ▁Tw ent ies ▁were ▁marked , ▁on ▁the ▁international ▁scene , ▁by ▁the ▁problem ▁of ▁the ▁economic ▁re par ations ▁due ▁from ▁Germany ▁to ▁France ▁and ▁Great ▁Britain , ▁as ▁well ▁as ▁by ▁various ▁ir red ent ist ▁claims . ▁The ▁US ▁acted ▁as ▁medi ators ▁in ▁this ▁conflict , ▁first ▁with ▁the ▁Daw es ▁Plan ▁in ▁ 1 9 2 4 , ▁then ▁the ▁Young ▁Plan ▁in ▁ 1 9 2 9 . ▁ ▁See ▁also ▁ ▁Third ▁Party ▁System , ▁ 1 8 5 0 s – 1 8 9 0 s ▁ ▁Fif th ▁Party ▁System , ▁ 1 9 3 0 s – 1 9 6 0 s ▁ ▁History ▁of ▁the ▁United ▁States ▁Democratic ▁Party ▁ ▁History ▁of ▁the ▁United ▁States ▁Republican ▁Party ▁ ▁Political ▁parties ▁in ▁the ▁United ▁States ▁ ▁References ▁ ▁Bibli ography ▁ ▁Bl um , ▁John ▁Mort on . ▁The ▁Progress ive ▁Pres idents : ▁Ro ose vel t , ▁Wilson , ▁Ro ose vel t , ▁Johnson ▁(