Question:  USS Elrod was named after the Captain who enlisted in what part of the armed forces in 1927?
Context: The Armed Forces of Serbia and Montenegro (Serbian: Војска Србије и Црне Горе/Vojska Srbije i Crne Gore; ВСЦГ/VSCG ) included ground forces with internal and border troops, naval forces, air and air defense forces, and civil defense.  Preceding the "VSCG" was the Armed Forces of Yugoslavia (1992–2003) (Војска Југославије/Vojska Jugoslavije, ВЈ/VJ ) from the remnants of the Yugoslav People's Army (JNA), the military of SFR Yugoslavia.  The state, then named Federal Republic of Yugoslavia, participated in the Yugoslav Wars with limited direct intervention of its own armed forces.  Following the end of the Wars and the constitutional reforms of 2003 by which the state was renamed "Serbia and Montenegro", the military accordingly changed its name.  The military was heavily involved in combating Albanian separatists during the Kosovo War and Preševo Valley conflict, and also engaged NATO airplanes during the 1999 NATO bombing of Yugoslavia. The Spanish Armed Forces (Spanish: "Fuerzas Armadas Españolas" , FFAA) are the military forces of the Kingdom of Spain.  The Spanish Armed Forces are a modern military force charged with defending the Kingdom's integrity and sovereignty.  They consist of the Army, Navy and Air Force.  The King is the Commander-in-Chief of the armed forces, with the title "Capitán General de las Fuerzas Armadas" (Captain General of the Armed Forces).  The current Chief of the Defence Staff is General Fernando Alejandre Martínez.  The Spanish Armed Forces are active members of NATO, the Eurocorps, the European Union Battlegroups, and also provide peace keeping troops to the United Nations. USS "Elrod" (FFG-55), an "Oliver Hazard Perry"-class frigate, is a ship of the United States Navy named after Captain Henry T. Elrod (1905–1941), a Marine aviator who was posthumously awarded the Medal of Honor for his heroism in the defense of Wake Island in World War II. The Italian Armed Forces (italian: "Forze armate italiane") encompass the Italian Army, the Italian Navy and the Italian Air Force.  A fourth branch of the armed forces, known as the Carabinieri, take on the role as the nation's military police and are also involved in missions and operations abroad as a combat force.  Despite not being a branch of the armed forces, the Guardia di Finanza is part of the military and operates a large fleet of ships, aircraft and helicopters, enabling it to patrol Italy's waters and to eventually participate in warfare scenarios.  These five forces have military status and are all organized along military lines, comprising a total of 350,000 men and women with the official status of active military personnel.  The President of the Italian Republic heads the armed forces as the President of the High Council of Defence established by article 87 of the Constitution of Italy.  According to article 78, the Parliament has the authority to declare a state of war and vest the necessary powers in the Government. The Armed Forces Conduct Medal is a military decoration of the Armed Forces of the Philippines.  It is awarded to enlisted personnel of the Armed Forces of the Philippines for serving two successive enlistment terms without record of punishment or disciplinary action. Rank Pay is a scheme implemented by the Rajiv Gandhi led Indian National Congress (I) Government in 1986, in the wake of 4th Central Pay Commission(4CPC), that reduced the basic-pay, or grade pay, of seven armed armed officers ranks of 2nd Lieutenant, Lieutenant, captain, majors, lt-colonel, colonels, and brigadiers, and their equivalent in the air-force and the Indian Navy by fixed amounts designated as 'rank-pay'.  The reduction in the basic-pay, the established basis of determining rank equivalences between armed forces officers and civilian and police counterparts, altered long established historical grade-pay equivalences or parities between armed forces officers and police officer, which was an accepted principle since 1947 for determination of armed forces grade pay, and which was 'further cemented' in 1973, by the 3 Central Pay Commission(3CPC).  The reduction in grade-pay apart from causing asymmetries in rank equivalence between the officers from the Indian police service and armed forces affected the basic pay, allowances, entitlements, promotion prospects, status, and pension of thousands of officers in the service in January 1986, and the decades after that.  In 2012, reduction in armed forces grade-pay, which was a subject of litigation since 1994, was declared illegal by the Supreme Court of India, which in a landmark judgement ordered the government to pay arrears to the more than 20,000 affected officers of the armed forces. The 16 September military parade in honour of the anniversary of Mexican Independence is an annual tradition dating back to the late 19th century and the beginning of the professionalisation of the Mexican Armed Forces in the 20th century.  Held yearly in the Zócalo in Mexico City, this parade, the largest of the various parades held simultaneously nationwide on September 16, Mexican Independence Day, is presided by the President of Mexico in the fulfillment of his duty as the Supreme Commander of the Armed Forces.  It is also attended by members of the Cabinet of Mexico, the Congress of the Union, civil service employees, the Secretaries of National Defense and Navy, members of the Mexican Armed Forces and Federal Police, uniformed service veterans, the state diplomatic corps, delegations representing the religious sector, indigenous peoples, sports and the private sector, and the general public.  Seen on TV and the Internet and heard on radio, this is one of the biggest events of the year.  Taking part in this are members of the Mexican Armed Forces and the Federal Police. Elrod was born on September 27, 1905, in Turner County, Georgia.  He enlisted in the Marine Corps in December 1927, and was appointed a Marine second lieutenant in February 1931.  He attended the University of Georgia and Yale University prior to his entry into the Marine Corps. The 2010 Kiev Victory Day Parade was held on May 9, 2010 in Kiev, honoring the 65th anniversary of the Soviet Union's victory in the Great Patriotic War.  Inspecting the parade was the Chief of General Staff of the Armed Forces General of the Army Ivan Svyda.  The commander of the Ukrainian Armed Forces, Colonel General Gennady Vorobyov, Commanded the Parade.  The President of Ukraine Viktor Yanukovych delivered a jubilee address.  2,500 members of the Ukrainian Armed Forces troops from Russia and Belarus took part in the parade.  17 military orchestras took part in the parade under the command of the Chief of the Military Music Department of the General Staff of the Ukrainian Armed Forces, Major General Volodymyr Derkach. A Senior Enlisted Adviser (SEA) in the United States Armed Forces is the most senior enlisted service member in a unit, and acts as an advisor to the commanding officer.  Formally, E-9 billets for the senior enlisted advisor are established at Service unit (e.g., battalion, wing, or higher), command, major command, force, or fleet levels to the SEAs/CSELs of DoD Agencies and the Senior Enlisted Advisor to the Chairman of the Joint Chiefs of Staff.  SEAs are also known as Command Senior Enlisted Leaders (CSEL).  Always a non-commissioned officer, the SEA is the main link between the commanding officer and the enlisted service members under his or her charge.
Answer: Marine Corps