There is no doubt that Obama is attempting to redefine the very nature of the conflict. This is no longer the former President George W. Bush's ever expansive, generic war on terror. This now becomes President Obama's very narrow war - an assault on those groups that pose a specific threat.
It is not clear to me that he will be successful - this is a somewhat weakened and distracted president at the start of his second term. The speech has already been attacked by senior Republicans - one saying that with this speech the president has handed victory to the terrorists.
On more concrete issues like closing Guantanamo, don't forget he promised that on day one of his time in office.
He has been criticised by the left and the right, but many moderate voices will also say that hey welcome the fact that America's longest war is no longer necessarily an endless one.
More top news
Real Madrid have clinched a record 11th Champions League title after a dramatic penalty shoot-out victory over Atletico Madrid
Magician Richard Jones has won Britain's Got Talent 2016 after wowing the public with his amazing magic acts.
A medical tribunal found Dr Mark Bonar posed a "potential future risk of harm to patients".