Question: Richard E. Kraus was a United States Marine who was killed during what battle that was codenamed Operation Stalemate II?

full_context: Document 1: Battle of Angaur: The Battle of Angaur was a battle of the Pacific campaign in World War II, fought on the island of Angaur in the Palau Islands from 17 September—22 October 1944. This battle was part of a larger offensive campaign known as Operation Forager which ran from June 1944 to November 1944 in the Pacific Theater of Operations, and Operation Stalemate II in particular.
Document 2: Richard E. Kraus: Richard Edward Kraus (November 24, 1925October 3, 1944) was a United States Marine who was killed in action in World War II during the Battle of Peleliu on October 3, 1944. He posthumously received the Medal of Honor, the highest military honor awarded by the United States.
Document 3: Battle of Guam (1944): The Second Battle of Guam (21 July – 10 August 1944) was the American recapture of the Japanese-held island of Guam, a U.S. territory in the Mariana Islands captured by the Japanese from the U.S. in the 1941 First Battle of Guam during the Pacific campaign of World War II.
Document 4: Battle of Okinawa: The Battle of Okinawa (Japanese: 沖縄戦 , Hepburn: Okinawa-sen ) (Okinawan: 沖縄戦 , "Uchinaa ikusa " ), codenamed Operation Iceberg, was a major battle of the Pacific War fought on the island of Okinawa by United States Marine and Army forces against the Imperial Japanese Army and included the largest amphibious assault in the Pacific War during World War II, the April 1, 1945, invasion of Okinawa itself. The 82-day battle lasted from April 1 until June 22, 1945. After a long campaign of island hopping, the Allies were planning to use Okinawa, a large island only 340 mi away from mainland Japan, as a base for air operations for the planned invasion of the Japanese home islands.
Document 5: Hershel W. Williams: Hershel Woodrow "Woody" Williams (born October 2, 1923) is a retired United States Marine who received the Medal of Honor for his actions in the Battle of Iwo Jima during World War II. He is the last surviving recipient of the Medal of Honor from that battle and the last surviving United States Marine to receive the Medal of Honor for heroism in World War II.
Document 6: Battle of Leyte: The Battle of Leyte in the Pacific campaign of World War II was the amphibious invasion of the Gulf of Leyte in the Philippines by American forces and Filipino guerrillas under the command of General Douglas MacArthur, who fought against the Imperial Japanese Army in the Philippines led by General Tomoyuki Yamashita from 17 October - 26 December 1944. The operation code named "King Two" launched the Philippines campaign of 1944–45 for the recapture and liberation of the entire Philippine Archipelago and to end almost three years of Japanese occupation.
Document 7: Battle of Peleliu: The Battle of Peleliu, codenamed Operation Stalemate II by the United States military, was fought between the U.S. and the Empire of Japan during the Mariana & Palau Campaign of World War II, from September to November 1944, on the island of Peleliu.
Document 8: Peleliu: Peleliu (or Beliliou) is an island in the island nation of Palau. Peleliu forms, along with two small islands to its northeast, one of the sixteen states of Palau. The island is noted as the location of the Battle of Peleliu in World War II.
Document 9: Lewis K. Bausell: Corporal Lewis Kenneth Bausell (April 17, 1924 – September 18, 1944) was a United States Marine and posthumous recipient of the United States' highest military honor — the Medal of Honor — for his sacrifice of life, "above and beyond the call of duty", during World War II. During combat at Peleliu, he covered an exploding Japanese hand grenade in order to protect his comrades, and died of his wounds three days later. Bausell was the only enlisted Marine from the Nation's capital, Washington, D.C. to be awarded the Medal of Honor for actions during World War II.
Document 10: Kunio Nakagawa: Colonel Kunio Nakagawa (中川 州男 , Nakagawa Kunio , 23 January 1898 – 24 November 1944) was the commander of Japanese forces which defended the island of Peleliu in the Battle of Peleliu which took place from 15 September to 27 November 1944. He inflicted heavy losses on attacking U.S. Marines and held Peleliu Island for almost three months. On the evening of 24 November, after the battle was lost, he committed "seppuku" (ritual suicide) in the tradition of Japanese samurai warriors. He was posthumously promoted to lieutenant general.
Document 11: John Basilone: John Basilone (November 4, 1916 – February 19, 1945) was a United States Marine Corps gunnery sergeant who was killed in action during World War II. He received the Medal of Honor for heroism above and beyond the call of duty during the Battle for Henderson Field in the Guadalcanal Campaign, and the Navy Cross posthumously for extraordinary heroism during the Battle of Iwo Jima. He was the only enlisted Marine to receive both of these decorations in World War II.
Document 12: Richard K. Sorenson: Richard Keith Sorenson (August 28, 1924 – October 9, 2004) was a United States Marine who, as a private, received the Medal of Honor during World War II for his heroism during the Marine landing on Kwajalein Atoll on the night of February 1,-February 2, 1944. He threw himself on an exploding Japanese grenade, that was part of US munitions captured during the Battle of Bataan, to save the lives of five fellow Marines. Amazingly, although fragments of the grenade ripped through his thighs, hips, right arm and right leg, he lived through the action. Of the 27 Marines who similarly threw themselves on grenades to save the lives of their fellow Marines during World War II, Sorenson was one of only four who survived. Fellow Medal of Honor recipients Richard E. Bush, Jacklyn H. Lucas and Carlton R. Rouh were the other three survivors.
Document 13: USS Richard E. Kraus (DD-849): USS "Richard E. Kraus" (DD-849/AG-151) was a "Gearing"-class destroyer of the United States Navy, named for Marine Private First Class Richard E. Kraus (1925–1944), who was awarded the Medal of Honor posthumously for his "conspicuous gallantry" during the Battle of Peleliu.
Document 14: Henry Gurke: Private First Class Henry Gurke (November 6, 1922 – November 9, 1943) was a United States Marine who was killed in action in 1943 in the Bougainville Campaign of World War II. For his heroic actions, he was posthumously received the Medal of Honor — the highest military honor bestowed by the United States.
Document 15: Battle of Iwo Jima: The Battle of Iwo Jima (19 February – 26 March 1945) was a major battle in which the United States Marine Corps landed on and eventually captured the island of Iwo Jima from the Imperial Japanese Army during World War II. The American invasion, designated Operation Detachment, had the goal of capturing the entire island, including the three Japanese-controlled airfields (including the South Field and the Central Field), to provide a staging area for attacks on the Japanese main islands. This five-week battle comprised some of the fiercest and bloodiest fighting of the Pacific War of World War II.
ground_truth: The Battle of Peleliu