The leaders of Germany, France, Britain and other supporters of Ukraine have come together in exceptional ways to help sway the U.S. president.

A careful selection of cast and roles and a clear strategy to avoid deadlocks. European leaders' charm offensive on Donald Trump to foster Ukraine's cause this week was hastily arranged but

The president praised his guests at this week’s meeting, a change in tone that follows big concessions from Europe and careful observations of the way he operates.