"This is the third trip to South Korea by President Obama in the span of three years in office. During that time, he has also hosted the Korean President twice in the White House, most recently last October.
I think that the two leaders have forged an unprecedentedly close relationship and they’ve worked to implement the joint vision statements they agreed to in 2009 to promote global cooperation. I’d also note that this is, in effect, the handoff of the Nuclear Security Summit from Washington to Seoul, from — as the host. And that cooperation, I think, is emblematic of the global partnerships that they have achieved."

— Briefing on President Obama’s upcoming trip to Seoul for the Nuclear Security Summit. Read more here: http://www.whitehouse.gov/the-press-office/2012/03/20/press-briefing-senior-administration-officials-presidents-upcoming-trip-