The foreign policy under the presidency of Woodrow Wilson deals with American diplomacy, and political, economic, military, and cultural relationships with the rest of the world from 1913 to 1921. Although Wilson had no experience in foreign policy, he made all the major decisions, usually with the top advisor Edward M. House. His foreign policy was based on his messianic philosophical belief that America had the utmost obligation to spread its principles while reflecting the 'truisms' of American thought. Wilson executed the Democratic Party foreign policy which since 1900 had, according to Arthur S. Link:consistently condemned militarism, imperialism, and interventionism in foreign policy. They instead advocated world involvement along liberal-internationalist lines. Wilson's appointment of William Jennings Bryan as Secretary of State indicated a new departure, for Bryan had long been the leading opponent of imperialism and militarism and a pioneer in the world peace movement.William A. Link and Arthur S. Link, American Epoch: A History of the United States Since 1900. Vol. 1. War, Reform, and Society, 1900-1945 (7th ed, 1993) p 127.

The main foreign policy issues Wilson faced were civil war in neighboring Mexico; keeping out of World War I and protecting American neutral rights; deciding to enter and fight in 1917; and reorganizing world affairs with peace treaties and a League of Nations in 1919. Wilson had a physical collapse in late 1919 that left him too handicapped to closely supervise foreign or domestic policy.

Leadership For advice and trouble shooting in foreign policy Wilson relied heavily on his trusted friend "Colonel" Edward M. House. Wilson came to distrust House's independence in 1919, and ended all contact.Wilson's wife froze out House after the president became disabled. Charles E. Neu, Colonel House: A Biography of Woodrow Wilson's Silent Partner (2015) pp. 427, 432, 434. After winning the presidency in the 1912 election, Wilson had no alternative choice for the premier cabinet position of Secretary of State. William Jennings Bryan had long been the dominant leader of the Democratic Party and had been essential to Wilson's presidential nomination. Nevertheless, the president-elect was worried about Bryan's radical reputation, and especially about his independent base.Arthur S. Link, Wilson, Volume II: The New Freedom (1956) 2:7–9.August Heckscher, Woodrow Wilson (1991) pp 269-270. Bryan had travelled the world giving speeches, promoting peace, and meeting with world leaders. Wilson had no such experience; he had studied English constitutional history in depth, but not its diplomatic history. He had not travelled widely outside the U.S. and Britain. Bryan proved very useful in helping pass major progressive domestic reforms through Congress, especially the Federal Reserve law. In foreign policy they worked together well at first. Bryan handled routine work and Wilson made the major decisions. Since Bryan had such a strong base in the Democratic Party, Wilson kept him informed, and allowed Bryan to pursue his own peace-priority of drafting 30 treaties with other countries that required both signatories to submit all disputes to an investigative tribunal. However he and Wilson clashed over U.S. neutrality in wartime. Bryan resigned in June 1915 after Wilson sent to Berlin a note of protest in response to the Sinking of the RMS Lusitania, a British passenger liner, by a German U-boat, with the death of 128 Americans. Bryan thought they travelled at their own risk into a war zone, while Wilson considered it was a violation of the laws of war to sink a passenger ship without giving the passengers a chance to reach the lifeboats.Ernest R. May, The World War and American Isolation, 1914-1917 (1959) pp 137–155.

Wilson selected Robert Lansing to replace Bryan because he was proficient in routine work and passive in ideas and initiative. Unlike Bryan he lacked a political base. The result was that Wilson could be—and indeed actually was—freer to personally make all major foreign policy decisions. John Milton Cooper concludes that it was one of Wilson's worst mistakes as president.John Milton Cooper, Woodrow Wilson: a biography (2009) p. 295 Wilson told Colonel House that as president he would practically be his own Secretary of State, and "Lansing would not be troublesome by uprooting or injecting his own views."Arthur S. Link, Wilson: the struggle for neutrality 1914-1915 (1960) 3:427-428

Lansing advocated "benevolent neutrality" at the start of the war, but shifted away from the ideal after increasing interference and violation of the rights of neutrals by Great Britain.See Papers relating to the foreign relations of the United States, The Lansing Papers, 1914–1920, Volume I, Document 277. In the enclosure it is stated that "If the British Government is expecting an attitude of “benevolent neutrality” on our part—a position which is not neutral and which is not governed by the principles of neutrality—they should know that nothing is further from our intention." According to Lester H. Woolsey, a top aide in the State Department and later Lansing's law partner, Lansing by mid-1915 had very strong views against Germany. He kept these to himself because Wilson disagreed. Lansing expressed his views by manipulating the work of the State Department to minimize conflict with Britain and maximize public awareness of Germany's faults. Woolsey states:Although the President cherished the hope that the United States would not be drawn into the war, and while this was the belief of many officials, Mr. Lansing early in July, 1915, came to the conclusion that the German ambition for world domination was the real menace of the war, particularly to democratic institutions. In order to block this German ambition, he believed that the progress of the war would eventually disclose to the American people the purposes of the German Government; that German activities in the United States and in Latin America should be carefully investigated and frustrated; that the American republics to the south should be weaned from the German influences; that friendly relations with Mexico should be maintained even to the extent of recognizing the Carranza faction; that the Danish West Indies should be acquired in order to remove the possibility of Germany's obtaining a foothold in the Caribbean by conquest of Denmark or otherwise; that the United States should enter the war if it should appear that Germany would become the victor; and that American public opinion must be awakened in preparation for this contingency. This outline of Mr. Lansing's views explains why the Lusitania dispute was not brought to the point of a break. It also explains why, though Americans were incensed at the British interference with commerce, the controversy was kept within the arena of debate.Lester H. Woolsey, "Robert Lansing's Record as Secretary of State." Current History 29.3 (1928): 386-387

The two key Allied ambassadors were Cecil Spring Rice for Britain and Jean Jules Jusserand for France. The latter was highly successful, achieving popularity with Americans from many backgrounds and perspectives.Robert Young, An American by Degrees: The Extraordinary Lives of French Ambassador Jules Jusserand (McGill-Queen's University Press, 2009) However Spring-Rice was a close friend of Wilson's enemies Theodore Roosevelt and Henry Cabot Lodge, and never was comfortable in the Wilsonian milieu. Wilson distrusted Spring-Rice as incompetent and a mischief-maker. House solved the problem by a close friendship with Sir William Wiseman, a British banker who took charge of financial negotiations as well as intelligence operations.Neu, (2015) pp 148, 219, 309. Johann Heinrich von Bernstorff was the German ambassador—suave and sophisticated. He tried and failed to get Berlin to accept Wilson's proposals for peace plans. Meanwhile, he was organizing propaganda activities. However, after the war he denied any involvement with sabotage activities to disrupt the shipment of American supplies to the Allies, such as the monster Black Tom explosion in 1916.Link, Wilson 5:278–280.Reinhard R. Doerries, Imperial Challenge: Ambassador Count Bernstorff and German-American Relations, 1908-1917 (1989)Stephen Irving Max Schwab, "Sabotage at Black Tom Island: A wake-up call for America." International Journal of Intelligence and CounterIntelligence 25.2 (2012): 367-391.

Latin America American foreign policy under Wilson marked a departure from President Taft's "Dollar Diplomacy." Wilson wished to correct the American errors of the nineteenth century. Instead, Wilson desired to extend American friendship to the nations of Latin America. In his 1913 Address Before the Southern Commercial Congress, Wilson states:In emphasizing the points which must unite us in sympathy and in spiritual interest with the Latin-American peoples we are only emphasizing the points of our own life, and we should prove ourselves untrue to our own traditions if we proved ourselves untrue friends to them. Do not think, therefore, gentlemen, that the questions of the day are mere questions of policy and diplomacy. They are shot through with the principles of life. We dare not turn from the principle that morality and not expediency is the thing that must guide us and that we will never condone iniquity because it is most convenient to do so.Wilson believed that America ought to conduct itself morally and in accordance with its own traditions rather than operating exclusively out of American interest. Wilson was willing to exert American power to attempt to change or influence Latin American nations' internal politics, such as when he withheld recognition of Mexican President Huerta's administration. Wilson, however, justified his lack of recognition on moral grounds since Huerta had seized power in a coup. Wilson believed resisting recognition would force Huerta to allow for free elections. Thus Wilson placed a high importance on conducting American foreign policy for moral ends.

Panama Canal The Panama Canal opened in 1914, just after the start of World War I. It fulfilled the long-term dream of building a canal across Central America and making possible quick movement between the Atlantic and the Pacific.. For the US Navy the canal allowed quick movement of fleets between the Pacific and the Atlantic. Economically it opened new opportunities to the shippers to reach the Far East. Britain insisted that treaty agreements meant its ships would pay the same toll as American ships, and Congress agreed to the same tolls for every nation.William S. Coker, "The Panama Canal Tolls Controversy: A Different Perspective." Journal of American History 55.3 (1968): 555-564 online.

To further protect the Canal, in 1917, the US purchased the strategically located Danish West Indies for $25 million, in gold, from Denmark. The territory was renamed the United States Virgin Islands. Its population of 27,000 was over 90 per cent Black; its economy was based on sugar.Leila Amos Pendleton, "Our New Possessions-The Danish West Indies." Journal of Negro History 2.3 (1917): 267-288. online

Mexico

Washington had long recognized the dictatorial government of Porfirio Díaz. As Díaz approached eighty years old, he announced he was not going to run in the scheduled 1910 elections. This set off a flurry of political activity about presidential succession. Washington wanted any new president to continue Díaz's policies that had been favorable to American mining and oil interests and produced stability domestically and internationally. However Díaz suddenly reneged on his promise not to run, exiled General Bernardo Reyes, the most viable candidate. He had the most popular opposition candidate, Francisco I. Madero jailed. After the rigged 1910 reelection of Diaz, political unrest became open rebellion.Karl M. Schmitt, Mexico and the United States, 1821-1973 (1974) pp 108–126.