In May, the United States looks forward to hosting the G-8 and NATO Summits. To facilitate a free-flowing discussion with our close G-8 partners, the President is inviting his fellow G-8 leaders to Camp David on May 18-19 for the G-8 Summit, which will address a broad range of economic, political and security issues. The President will then welcome NATO allies and partners to his hometown of Chicago for the NATO Summit on May 20-21, which will be the premier opportunity this year for the President to continue his efforts to strengthen NATO in order to ensure that the Atlantic Alliance remains the most successful alliance in history, while charting the way forward in Afghanistan.
Barack Obama, Statement by the Press Secretary on the G-8 and NATO Summits Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/300059