[1] The "Koszta Affair" involved an interesting question of international law--i.e. the right of an alien domiciled in any country to the protection of that country--and has served as a precedent for the American government in somewhat similar cases that have arisen. Martin Koszta, a Hungarian revolutionist of 1848, had emigrated to the United States and had there taken the preliminary step for naturalization by formally declaring his intention to become a citizen of the United States. In 1853 he went on personal business to Smyrna, where he secured a passport from the American consul; the Austrian consul, however, caused him to be seized and detained on an Austrian brig-of-war. Soon afterward Captain Duncan N. Ingraham (1802-1891), in command of a United States sloop-of-war, arrived at Smyrna, and threatened to attack the Austrian vessel unless Koszta were released; and as a compromise Koszta was placed in the custody of the French consul. To Chevalier Hülsemann, then representing Austria at Washington, who had demanded from the United States the disavowal of the acts of its agents, the complete surrender of Koszta, and "satisfaction proportionate to the magnitude of the outrage," Marcy wrote on the 26th of September 1853, that Koszta "when seized and imprisoned was invested with the nationality of the United States" and had a right to the protection of the United States government, and added: "Whenever by the law of nations an individual becomes clothed with our national character--he can claim the protection of this government, and it may respond to that claim without being obliged to explain its conduct to any foreign power; for it is its duty to make its nationality respected by other nations and respectable in every quarter of the globe." Eventually Koszta was released and returned to the United States. The Hülsemann letter was published and greatly increased Marcy's popularity. [2] See Henry L. James, "The Black Warrior Affair" in the _American Historical Review_, vol. xii. (1907).