Answer:
1. Columbia
2.It was an agreement between the United States and Panama granting exclusive canal rights to the United States across the Isthmus of Panama in exchange for financial reimbursement and guarantees of protection to the newly established republic. The United States government was not willing to renegotiate the treaty with Colombia or alter the amounts involved and soon gave its support, both political and military, to a planned uprising in Panama, which led to its independence and to the eventual construction of the Panama Canal.
3. To aid the rebels, the U.S.-administered railroad in Panama removed its trains from the northern terminus of Colón, thus stranding Colombian troops sent to crush the insurrection.
Step-by-step explanation:
all the info came from the History Channel website. I used it and made a 100 on my work sheet