Here is President Ronald Reagan's Memorial Day speech given at Arlington National Cemetery on May 26, 1986.
Reagan concluded his speech:
And we owe them something, those boys. We owe them first a promise: That just as they did not forget their missing comrades, neither, ever, will we. And there are other promises. We must always remember that peace is a fragile thing that needs constant vigilance. We owe them a promise to look at the world with a steady gaze and, perhaps, a resigned toughness, knowing that we have adversaries in the world and challenges and the only way to meet them and maintain the peace is by staying strong.
That, of course, is the lesson of this century, a lesson learned in the Sudetenland, in Poland, in Hungary, in Czechoslovakia, in Cambodia. If we really care about peace, we must stay strong. If we really care about peace, we must, through our strength, demonstrate our unwillingness to accept an ending of the peace. We must be strong enough to create peace where it does not exist and strong enough to protect it where it does. That's the lesson of this century and, I think, of this day. And that's all I wanted to say. The rest of my contribution is to leave this great place to its peace, a peace it has earned.
Thank all of you, and God bless you, and have a day full of memories.
President Obama, on the other hand, rejects "20th century thinking" and refuses to learn from the lessons it taught us. His contribution on this day will most likely involve some sort of selfie.