Nato 'agrees missile defence plan'
US President Barack Obama has said Nato has agreed to his plans for a new, expanded missile defence system for Europe that would cover the US and all Nato member countries.
The US already has a missile defence system based mainly in North America and is planning one for its European allies.
President Obama spoke between meetings on the opening day of a Nato summit in Portugal.
The president said Saturday's session will focus on the strategy for Afghanistan.
A top alliance official said Nato will begin reducing its troops in Afghanistan from next July and will end its combat role there by 2014, or earlier.
Mr Obama said the US and its Nato partners had made "substantial progress" on the summit's first day.