US President Joe Biden arrived on Sunday in Brussels for two days of summits with leaders from the NATO military alliance and the European Union.

Biden, on his first foreign trip as president, flew in from Britain, where he attended a G7 summit, and was welcomed by Belgian Prime Minister Alexander De Croo.

Brussels has launched a major security operation to ensure the safety of Biden and the leaders of the 28 other NATO members states arriving for the summit.

The summit is expected to see Biden mark a resumption of the US’s leading role in NATO after the disruption of the Trump presidency.

They are hoping to formulate a tough message for Vladimir Putin to give Biden something substantial to take to Geneva for his summit with the Russian president on Wednesday.

The NATO summit is also likely to security issues in space, cyberspace, and the growing influence of China.

On Tuesday, Biden is due to attend the EU-US summit.

(AFP)