What established the procedure by which the united states would expand westward across north america by the admission of states rather than by the expansion of existing states? a) the treaty of 1763 b) the wilmont proviso c) the monroe doctrine d) the northwest ordinance

the answer would be option c. the chief result of u.s. participation in world war i is that, the u.s. forces ended the stalemate and led to an allied victory. after the us joined wwi, the allies had the forces they need to triumph. hope this is the answer that you are looking for.

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