Title: Panama Canal
Content: new nation. On November 6, 1903, Philippe Bunau-Varilla, as Panama's ambassador to the United States, signed the Hay–Bunau-Varilla Treaty, granting rights to the United States to build and indefinitely administer the Panama Canal Zone and its defenses. This is sometimes misinterpreted as the "99-year lease" because of misleading wording included in article 22 of the agreement. Almost immediately, the treaty was condemned by many Panamanians as an infringement on their country's new national sovereignty. This would later become a contentious diplomatic issue among Colombia, Panama, and the United States. President Roosevelt famously stated, "I took the Isthmus, started the canal

Title: History of Panama (1821–1903)
Content: point, the Colombian government asked the United States to intercede and bring about an armistice in Panama, which was arranged aboard the in the Bay of Panama in 1902. Throughout the period of turmoil, the United States had retained its interest in building a canal through either Nicaragua or Panama. An obstacle to this goal was overcome in December 1901 when the United States and Britain signed the Hay–Pauncefote Treaty. This treaty nullified the provisions of the Clayton–Bulwer Treaty of 1850 and signified British acceptance of a canal constructed solely by or under the auspices of the United States with

Title: History of Panama (1821–1903)
Content: express interest in negotiating with the United States on building a canal. A treaty was signed in 1846 between the two countries. The treaty removed the existing restrictive tariffs and gave the United States and its citizens the right of free transit of persons and goods over any road or canal that might be constructed in the isthmus. In addition, the United States guaranteed the neutrality of the isthmus and Colombia's sovereignty over it, with a view to ensuring uninterrupted transit for the duration of the treaty, which was to be twenty years or as long thereafter as the parties

Title: Panama Canal fence
Content: United States maintained the avenue and the sidewalks on both sides as they were inside the Zone. Under a treaty of 1904 which was ratified by the Panamanian National Legislature, the United States had undertaken to build and maintain the canal with permanent sovereignty rights over it. In exchange, the Republic of Panama received a 10 million dollar payment and additional yearly payments which began with the opening of the canal. In addition to the 10 million dollar treaty purchase of the land rights from Panama, the United States paid to purchase the title to all the lands in the

Title: Panama Canal Zone
Content: the United States would withdraw its protection and make the best terms it could with Colombia. The Panamanians agreed, even adding a provision to the new constitution, at US request, allowing the larger nation to intervene to preserve public order. The treaty was approved by the provisional Panamanian government on December 2, 1903, and by the US Senate on February 23, 1904. Under the treaty, Panama received , much of which the United States required to be invested in that country, plus annual payments of ; with those payments made, as well as for the purchase of the French company

Question: The US signed a treaty with which country to allow the construction of the Panama Canal?
Answer: Columbia