"Happy" Memorial Day - how ironic we say this to people at a time that was once solely for the mourning of dead soldiers at the end of the Civil War.
Over time it became as a tradition for all wars, lost family members for any reason and so on. Still, the biggest celebrations are to the soldiers both lost and alive. We grieve for those who died protecting our freedom, for those who serve willing to lose their lives. And we hug those who are back home with us.
Many songs have been centered around various wars, many tributes to our country. I think the one that speaks more than any other for this day is 'American Soldier' by Toby Keith.