International Relations and the Constitutional Separation of Powers
In 1787 the Constitution granted significant new powers to the central government, including those traditionally held by sovereign nations. In response to Anti-Federalist concerns about a too-powerful central government, James Madison explained in Federalist No. 51 that the new system of government was designed to work with human nature:
“If men were angels, no government would be necessary. If angels were to govern men, neither external nor internal controls on government would be necessary. In framing a government which is to be administered by men over men, the great difficulty lies in this: you must first enable the government to control the governed; and in the next place oblige it to control itself. A dependence on the people is, no doubt, the primary control on the government; but experience has taught mankind the necessity of auxiliary precautions” (James Madison, Federalist No. 51, 1788).
Because the new U.S. government divided power among different branches and levels, ambition would “counteract ambition,” according to Madison. In other words, when individuals in office tried to take on more power, those attempts would be contested, by others in rival offices (who, in principle, were also ambitious). The checks and balances in the system depended on the “backbone” of all the people in office and their willingness to stand up for adherence to proper constitutional roles and limits. For instance, as explained in Federalist No. 74, the president’s role as commander in chief occurs only when the military is called into the service of the nation by the legislature (Alexander Hamilton, Federalist No. 74, 1788). The president may negotiate treaties with foreign nations, but he must obtain advice and consent from the Senate. Alexander Hamilton explained that the treaty-making power is neither wholly legislative nor wholly executive, but is a function of both branches:
The power of making treaties is, plainly, neither the one nor the other. It relates neither to the execution of the subsisting laws, nor to the enaction of new ones… Its objects are CONTRACTS with foreign nations, which have the force of law, but derive it from the obligations of good faith” (Alexander Hamilton, Federalist No. 75, 1788).
The President as “Chief Diplomat”
Checks and balances were built into the new government’s power to direct and control foreign affairs. The president would be the nation’s “Chief Diplomat.” Though those words do not appear in the Constitution, it is undisputed that the president represents the country on the world stage. But his power in this role was not meant to be unchecked. While the president can negotiate treaties with other nations, he needs the “advice and consent” of the Senate. Further, the House of Representatives has the power to appropriate any funds needed to bring treaties into effect.
Washington’s Neutrality Proclamation
As the nation’s first president, George Washington set several precedents related to the chief executive's power to guide foreign policy. One of the first appearances of America on the world stage was a small part in the war that took place between revolutionary France and Great Britain. France was on the brink of a bloody reign of terror, having overthrown its monarchy and beheaded its king and queen. Thousands of French citizens would soon die at the guillotine. Yet support for France was still strong in the United States. Despite the bloodbath, many sympathizers with the Revolution—the Jeffersonians saw hopeful signs of popular government spreading across the Atlantic.
Alexander Hamilton, writing as Pacificus, defended Washington’s action, asserting that unless war was declared, the president had a responsibility to keep the country out of war when possible: “A Proclamation of Neutrality... is a usual and a proper measure... [for] a Country whose true interest lies in the preservation of peace” (Alexander Hamilton, Pacificus No. 1, 1793).
Abraham Lincoln and the Civil War
The Civil War, although it was a war between the Union and the Confederacy, had international implications. In the Emancipation Proclamation (1863), President Abraham Lincoln declared that he was freeing slaves as a war measure. He limited slavery in the rebelling states (although not in the Confederate territory already under Union control). These freed slaves would be welcomed into the Union Army. Many Democrats opposed to Lincoln argued that the Proclamation was a clear abuse of executive power. Some Republicans argued that the Proclamation did not go far enough, in that it did not emancipate all slaves. Still, the Emancipation Proclamation gave the North moral superiority over the South, and made it practically impossible for Britain to aid the South in the war. (England’s Parliament had ended slavery peacefully throughout the British Empire many years earlier.)
Wilson and the Treaty of Versailles
The United States did enter into an international conflict—World War I—in the early twentieth century. Although President Woodrow Wilson ran for reelection in 1916 with the slogan “He kept us out of war,” he asked Congress for a Declaration of War in 1917 to “make the world safe for democracy” (Woodrow Wilson, “Speech to Congress,” April 2, 1917). By the end of World War I, President Wilson negotiated with the leaders of the Allies against Germany to write the Treaty of Versailles. He was forced to make extreme concessions from his peace plan, the Fourteen Points, based on the principle of the self-determination of nations. He remained confident in the League of Nations—one of his Fourteen Points—to fix remaining problems in the treaty. Back in the United States, however, he was disappointed to learn that some senators, led by the Republican Henry Cabot Lodge, were strongly opposed to joining the League of Nations, and the treaty was rejected by the Senate.