Thousand Days' War
American interests in the Panama Isthmus led to an American intervention and naval deployment in Panama ( then part of Colombia ) under the guise of upholding the Treaty of Mallarino-Bidlack . 
<triplet> American <subj> Panama <obj> diplomatic relation <triplet> Panama Isthmus <subj> Panama <obj> country <triplet> Panama <subj> American <obj> shares border with