<iframe width="580" height="385" src="https://www.youtube.com/embed/iwFKM1lgL9E?hl=en" frameborder="0" allowfullscreen></iframe> <br>To be a veteran is to have endured and survived challenges most Americans will never know," the president says. Subscribe to ... <br><a href="https://www.youtube.com/watch?v=iwFKM1lgL9E">source</a>