After a year of discussions -- and sometimes debate -- the new Strategic Concept that we are embracing shows that NATO is fully united about the way forward and committing to addressing the full range of security challenges of this century.

WHITEHOUSE: President Obama��s Statement at NATO Summit

The question: Is NATO going to have a new strategic concept, which brings to the surface a number of questions President Obama already spoke about -- NATO's expeditionary capabilities, never forgetting NATO's core function, the integrity of the NATO territory, NATO's relations with Russia.

WHITEHOUSE: President Obama Meets with NATO Secretary General

And just to take one example, in that respect, at Lisbon, NATO agreed on a new strategic concept where different nations would develop different capabilities that could be brought to bear so that NATO is no longer an alliance built to simply repel a Soviet invasion but can meet new threats, whether they come from ballistic missiles or cyber attacks or terrorism.

WHITEHOUSE: Press Briefing with Jay Carney and Ben Rhodes