Last time Prince Harry was in America, he witnessed the Warrior Games, a paralympic-style event for wounded servicemen, and he said at the time that he hoped to bring a similar event to the UK.
Today he made good on that promise, and launched a sporting championship for injured members of the armed forces in the UK, the Invictus Games, which will see servicemen and women take part in sports like wheelchair basketball, indoor rowing and sitting volleyball.
The launch of the Invictus Games is a major part of the reason why Harry gave up his active duty army career and moved to a London desk-job.
It follows on from his work with Walking With The Wounded which ast year saw him walk to the South Pole.
Harry officially launched the Invictus Games today at the former Olympic Park in Stratford, east London
He said today, "I have witnessed first hand how the power of sport can positively impact the lives of wounded, injured and sick servicemen and women in their journey of recovery. The Invictus Games will focus on what they can achieve post-injury and celebrate their fighting spirit through an inclusive sporting competition that recognises the sacrifice they have made."
The prince said he believed the competition would have a "long-lasting impact" on the well-being of those who have "served their nations so bravely".