Theodore Roosevelt actually said...

any citizens of the United States, and all persons residing or being within their territory or jurisdiction... can in no wise obtain any pro...

no such vessel which may have been permitted to remain within the waters of the United States for the purpose of repair shall continue ... f...

it is the duty of a neutral government not to permit or suffer the making of its waters subservient to the purposes of war

military forces in aid of either belligerent cannot lawfully be originated or organized within their jurisdiction