List of battles with most United States military fatalities

Columns: Battle or siege | Conflict | Date | Estimated number killed | Opposing force
Battle of Elsenborn Ridge ( part of the Battle of the Bulge ) | World War II | December 16 to 26 , 1944 | ~5,000 killed | Germany | Battle of Saint-Mihiel | World War I | September 12 to 15 , 1918 | ~4,500 killed | Germany | Battle of Gettysburg | American Civil War | July 1 to July 3 , 1863 | 3,155 killed | Confederacy | Battle of Leyte Gulf | World War II | October 23 to 25 , 1944 | 2,800 killed | Japan | Battle of Spotsylvania | American Civil War | May 8 to May 21 , 1864 | 2,725 killed | Confederacy | D-day ( first day of Operation Overlord ) | World War II | June 6 , 1944 | 2,500 killed | Germany | Pearl Harbor Attack | World War II | December 7 , 1941 | 2,403 killed | Japan

Example questions:
The battle that took place from December 31 , 1862 to January 2 , 1863 was also known as what ? | The battle that took place from September 19 to September 20 , 1863 was the first major battle in what state ? | Who was the Confederate General in charge for the battle that had 3,155 people killed ? | How many people total were killed , wounded or missing for the battle that had 2,108 killed ? | What are other names for RCT-31 for the battle that had the least amount of people killed ?

Answers:
Second Battle of Murfreesboro | Georgia | General Robert E. Lee | 22,717 | Task Force Ovenshine and Task Force MacLean