From the closed-door meeting beneath the golden dome of the Hôtel des Invalides, the former military hospital in central Paris that now houses Napoleon’s tomb, to the leaders’ dinner at the French Presidential Palace, and from there today to the grand military parade on the Champs-Élysées, French President Emmanuel Macron set the stage for a Europe attempting to move from declarations to action on Ukraine, seeking to cap the final Bastille Day of his presidency with a display of political and military unity.