5. The Tomb of the Unknown Soldier
The original Tomb of the Unknown Soldier marks remains from World War I. Over the years, three other Unknown tombs were added for World War II, Korea and Vietnam.

In 1998, the remains in the The Unknown of Vietnam at Arlington National Cemetery were finally identified. A comparison between the exhumed body and DNA evidence revealed the service member to be Michael Blassie, a 24-year-old pilot shot down in 1972 near An Loc, Vietnam.

6. Invictus Games
This year, Prince Harry organized the first Invictus Games, an athletic tournament for wounded veterans in London. Harry was inspired by attending our own Warrior Games in 2013. He says of the Invictus Games, “I am extremely proud that we are bringing an event like this to the UK for the first time and believe it can have a long lasting impact on the well-being of those who have served their nations so bravely.” His mother would definitely be proud.