President Joe Biden has arrived in the capital of Belgium for the upcoming NATO summit, wearing a mask because of the coronavirus as an honour guard and trumpeters greeted him. The US president wrapped up a three-day meeting for the Group of Seven nations on Sunday and after a tea with Queen Elizabeth II flew to Brussels for the NATO meeting scheduled to begin Monday. Biden says that a strong NATO partnership is vital for maintaining U.S. national security for the remainder of the century. Cyber defence and climate change are among the topics being discussed at the summit.