Armed Forces Day is being celebrated today, Saturday, May 16, 2009. This is an annual celebration usually held on the 3rd Saturday in May in the USA, I believe. Other countries celebrate this day also, but some of those countries have different days on which to celebrate or observe this day.
Here are a few links I found to tell a little bit more about this special day and why it is celebrated and observed:
http://en.wikipedia.org/wiki/Armed_Forces_Day
President Barack Obama issued a proclamation for celebrating this day:
http://www.whitehouse.gov/the_press_off ... -Day-2009/