Naval operations during the Spanish-American War (1898-1901) served to convince President Theodore Roosevelt that the United States needed to control a canal somewhere in the Western Hemisphere. This interest culminated in the Spooner Bill of June 29, 1902, providing for a canal through the isthmus of Panama, and the Hay-Herrán Treaty of January 22, 1903, under which Colombia gave consent to such a project in the form of a 100-year lease on an area 10 kilometers wide. This treaty, however, was not ratified in Bogotá, and the United States, determined to construct a canal across the isthmus, intensively encouraged the Panamanian separatist movement.

By July 1903, when the course of internal Colombian opposition to the Hay-Herrán Treaty became obvious, a revolutionary junta had been created in Panama. José Augustin Arango, an attorney for the Panama Railroad Company, headed the junta. Manuel Amador Guerrero and Carlos C. Arosemena served on the junta from the start, and five other members, all from prominent Panamanian families, were added. Arango was considered the brains of the revolution, and Amador was the junta's active leader.

With financial assistance arranged by Philippe Bunau-Varilla, a French national representing the interests of de Lesseps's company, the native Panamanian leaders conspired to take advantage of United States interest in a new regime on the isthmus. In October and November 1903, the revolutionary junta, with the protection of United States naval forces, carried out a successful uprising against the Colombian government. Acting, paradoxically, under the Bidlack-Mallarino Treaty of 1846 between the United States and Colombia--which provided that United States forces could intervene in the event of disorder on the isthmus to guarantee Colombian sovereignty and open transit across the isthmus --the United States prevented a Colombian force from moving across the isthmus to Panama City to suppress the insurrection.

President Roosevelt recognized the new Panamanian junta as the de facto government on November 6, 1903; de jure recognition came on November 13. Five days later Bunau-Varilla, as the diplomatic representative of Panama (a role he had purchased through financial assistance to the rebels) concluded the Isthmian Canal Convention with Secretary of State John Hay in Washington. Bunau-Varilla had not lived in Panama for seventeen years before the incident, and he never returned. Nevertheless, while residing in the Waldorf-Astoria Hotel in New York City, he wrote the Panamanian declaration of independence and constitution and designed the Panamanian flag. Isthmian patriots particularly resented the haste with which BunauVarilla concluded the treaty, an effort partially designed to preclude any objections an arriving Panamanian delegation might raise. Nonetheless, the Panamanians, having no apparent alternative, ratified the treaty on December 2, and approval by the United States Senate came on February 23, 1904.

The rights granted to the United States in the so-called HayBunau -Varilla Treaty were extensive. They included a grant "in perpetuity of the use, occupation, and control" of a sixteenkilometer -wide strip of territory and extensions of three nautical miles into the sea from each terminal "for the construction, maintenance, operation, sanitation, and protection" of an isthmian canal.

Furthermore, the United States was entitled to acquire additional areas of land or water necessary for canal operations and held the option of exercising eminent domain in Panama City. Within this territory Washington gained "all the rights, power, and authority . . . which the United States would possess and exercise if it were the sovereign . . . to the entire exclusion" of Panama.

The Republic of Panama became a de facto protectorate of the larger country through two provisions whereby the United States guaranteed the independence of Panama and received in return the right to intervene in Panama's domestic affairs. For the rights it obtained, the United States was to pay the sum of US$10 million and an annuity, beginning 9 years after ratification, of US$250,000 in gold coin. The United States also purchased the rights and properties of the French canal company for US$40 million.

Colombia was the harshest critic of United States policy at the time. A reconciliatory treaty with the United States providing an indemnity of US$25 million was finally concluded between these two countries in 1921. Ironically, however, friction resulting from the events of 1903 was greatest between the United States and Panama. Major disagreements arose concerning the rights granted to the United States by the treaty of 1903 and the Panamanian constitution of 1904. The United States government subsequently interpreted these rights to mean that the United States could exercise complete sovereignty over all matters in the Canal Zone. Panama, although admitting that the clauses were vague and obscure, later held that the original concession of authority related only to the construction, operation, and defense of the canal and that rights and privileges not necessary to these functions had never been relinquished.

Data as of December 1987