President Obama: At Home Abroad

Callie Shell / Aurora for TIME

In Prague, Obama preached a nuclear-free world before a crowd of about 20,000.

The first public warning was a scratchy cough, broadcast live to the world, followed by a request for water. In the gilded British Foreign and Commonwealth Office, the President of the United States finally stood on a global stage, a new leader introducing a new American vision for the world. But he sounded a bit off, his voice pitched, parched, nasal. At the start of his first overseas trip as President, Barack Obama had come down with a cold.

Over the next eight days, Obama would have to visit six countries, attend three international summits, conduct scheduled meetings...