In 1915, Robert Lansing was appointed the 42nd United States Secretary of State, stepping into one of the most consequential diplomatic roles in American government at a moment when the country's relationship to the war in Europe remained deeply contested.

Born on October 17, 1864, in Watertown, Lansing was educated at Amherst College before pursuing a career in law. He built his professional life as a lawyer and jurist, developing expertise that would carry him into the world of diplomacy. His path into government came through the State Department, where he first served as Counselor before his elevation to Secretary of State under President Woodrow Wilson. In both capacities, Lansing was a leading advocate for American involvement in World War I, a position that placed him at the center of the foreign policy debates shaping the United States during those years. As Secretary of State, he served from 1915 to 1920, navigating the diplomatic pressures and negotiations that defined the Wilson administration's conduct of international affairs.

Lansing held the office of Secretary of State until 1920, when his tenure under Wilson came to an end. He died on October 30, 1928, in New York City, having spent his career working across the intersecting fields of law, politics, and diplomacy. His role as a forceful proponent of American entry into World War I, exercised first as Counselor and then as the nation's chief foreign minister, remains the defining feature of his public record.