Senate Minority Leader Mitch McConnell, R-Ky., and U.S. Rep. John Yarmuth, D-Ky., are celebrating the 68th anniversary of the D-Day invasion by meeting with World War II veterans.For historians, D-Day marks the turning point against Nazi Germany when Allied forces landed on the beaches of Normandy in France. Over 3,000 U.S. service members were killed on the day of the invasion.Yarmuth and McConnell are meeting with about 28 veterans from Kentucky, who are visiting the WWII memorial in Washington, D.C. to honor their comrades.In a Senate floor speech, McConnell says the country is forever indebted to their heroic efforts for defending the U.S. against totalitarianism. UPDATE: Yarmuth released the following statement after the celebration at the WWII memorial:"On this special day, I was honored to join Honor Flight participants and World War II veterans from Louisville and across the Commonwealth. It was an incredible opportunity to be with them as they visited the National World War II Memorial for the first time, and to thank them for their service. As part of the Greatest Generation, they will always be defined by their honor, sense of duty, and sacrifice on behalf of our nation."