International trips made by presidents of the United States have become a valuable part of the United States' interactions with foreign nations since such trips were first made in the early 20th century. Traveling abroad is one of the many duties of the president of the United States, leading the nation's diplomatic efforts through state visits, private meetings with foreign leaders or attending international summits. These are complicated undertakings that require months of planning along with a great deal of coordination and communication.
In the 19th century, American social convention made international travel by the incumbent president taboo, though foreign travel by former presidents was acceptable. The most widely publicized trip of this nature was the 1877–79 world tour of Ulysses S. Grant. Domestic travel was regarded as a welcome opportunity for presidents to talk with the people who had elected them, but foreign travel was seen in an altogether different light. The general public did not want their president mingling with royalty, visiting grand palaces, or exchanging bows with kings and queens.[1] This taboo was broken in the early 20th century, as policy makers at the federal level began to reevaluate the nation's role in international affairs.
The first international presidential trip, Theodore Roosevelt's 1906 visit to Panama, signaled a new era in how presidents conducted diplomatic relations with other countries.[2] Roosevelt's four immediate successors made at least one international trip while in office, cementing the acceptability of presidential global travel.
New transportation technologies also played a role in the changing patterns of presidential travel as well. Early in the 20th century, trips were made by steamship. When Woodrow Wilson traveled to Europe aboard the George Washington in 1918–19, the voyage took nine days. Forty years later, Dwight Eisenhower made the same trip by jet in nine hours. Jet aircraft enabled American presidents to travel the globe in ways that would have been impractical if not inconceivable before.[1] While Eisenhower was the first president to travel by jet (and the first to travel via helicopter as well), the first airplane trips by a sitting president were those of Franklin D. Roosevelt. He made multiple long-distance trips abroad by plane, each one an offshoot of Allied diplomatic interactions during World War II. Lyndon B. Johnson, who flew 523,000 miles aboard Air Force One while in office, made the first round-the-world presidential trip in December 1967.
The frequency and travel distance of presidential international travel has increased dramatically since George H. W. Bush became president in 1989. In 1990 the military version of the Boeing 747, the VC-25, was introduced for the use of the president. The planes have over 4,000 square feet (372 m2) of floor space, a bedroom and a shower, and enough secure communications to allow the plane to be a reasonable place to run the country. The plane is accompanied by a heavy lift aircraft that carries the helicopters and the limousines. Presidents Bill Clinton (1993–2001) and George W. Bush (2001–2009) visited 72 and 73 countries respectively during their terms of office. All totaled, they went to 91 countries with a combined population of 85% of the world total. President Barack Obama (2009–2017) visited 58 countries. Presidential visits of over 10,000 miles (16,093 km) are common. A round the world trip was first done by Johnson and subsequently has been done by presidents Nixon and Bush. Trips to Europe and Asia are becoming almost routine in the 21st century.