Nato heads of government (front row L-R): Canada's Prime Minister Justin Trudeau, Bulgaria's President Rumen Radev, Belgium's Prime Minister Sophie Wilmes, Albania's Prime Minister Edi Rama, Britain's Prime Minister Boris Johnson, NATO Secretary General Jens Stoltenberg, US President Donald Trump, Turkey's President Recep Tayyip Erdogan, Spain's Prime Minister Pedro Sanchez, Slovenia's Prime Minister Marjan Sarec, (middle row L-R) Croatia's Prime Minister Andrej Plenkovic, Denmark's Prime Minister Mette Frederiksen, Estonia's Prime Minister Juri Ratas, France's President Emmanuel Macron, German Chancellor Angela Merkel, Greek Prime Minister Kyriakos Mitsotakis, Hungary's Prime Minister Viktor Orban, Iceland's Prime Minister Katrin Jakobsdottir, Italy's Prime Minister Giuseppe Conte, (top row L-R) Lithuania's President Gitanas Nauseda, Luxembourg's Prime Minister Xavier Bettel, Montenegro's Prime Minister Dusko Markovic, Netherland's Prime Minister Mark Rutte, Norway's Prime Minister Erna Solberg, Lithuania's