Donald Trump went into the G7 meeting in Canada declaring that Russia should be readmitted to the group despite its annexation of the Crimean Peninsula and left it tweeting insults at his host, Canadian Prime Minister Justin Trudeau.

Sometime between taking off from Canada and landing in Crete to refuel, Trump made the decision not to sign the G7’s joint communique.

That document, which Trump’s officials had spent days working on with their counterparts, would have further censured Russia and endorsed free trade between its members.

French President Emmanuel Macron later observed that the G7 could act as the G6 if need be.