Germany’s Foreign Minister Heiko Maas on Tuesday underlined NATO’s essential role for Europe’s security and turned down French proposals towards developing an alternative military alliance.

“It is fair to say that NATO is alive,” Maas said at the Berlin Foreign Policy Forum, adding that the military alliance was still strong “from head to toe”.

His remarks came after French President Emmanuel Macron raised doubts about NATO’s future viability, arguing earlier this month that the alliance was undergoing “brain death”.

Read more: NATO 'alive, strong': Germany