posthumous recipient for this conflict. 20th century United States occupation of Veracruz, 1914 The United States occupation of the Mexican port of Veracruz lasted for six months in response to the Tampico Affair of April 9, 1914. The incident came in the midst of poor diplomatic relations between Mexico and the United States, related to the ongoing Mexican Revolution. Secretary of the Navy Josephus Daniels ordered that 56 Medals of Honor be awarded to participants in the occupation of Veracruz, the most for any single action before or since. In total 63 Medals of Honor were received for actions during the occupation; 1 Army, 9 to members of the United States Marine Corps and 53 to Navy personnel. Invasion and occupation of Haiti The first United States occupation of Haiti began on July 28, 1915 and ended in mid-August 1934. Occupation of the Dominican Republic The United States occupied the Dominican Republic from 1916 to 1924. In May 1917, Rear Admiral William Caperton forced Arias to leave Santo Domingo by threatening the city with naval bombardment. U.S. Marines invaded and took control of the country within two months; in November that same year, the U.S. imposed a military government. The Marines restored order throughout most of the republic (with the exception of the eastern region); the country's budget was balanced, its debt was diminished, and economic growth resumed; infrastructure projects produced new roads that linked all the country's regions for the first time in its history; a professional military organization, the Dominican Constabulary Guard, replaced the partisan forces that had waged a seemingly endless struggle for power. World War I World War I, also known as the First World War and the Great War, was a global military conflict which took place primarily in Europe from 1914 to 1918. Over 40 million casualties resulted, including approximately 20 million military and civilian deaths. Over 60 million European soldiers were mobilized from 1914 to 1918. The immediate cause of the war was the June 28, 1914 assassination of Archduke Franz Ferdinand, heir to the Austro-Hungarian throne, by Gavrilo Princip, a Bosnian Serb citizen of Austria-Hungary and member of the Black Hand. The retaliation by Austria-Hungary against Serbia activated a series of alliances that set off a chain reaction of war declarations. Within a month, much of Europe was in a state of open warfare. During this war, 126 men received the Medal