By Gram Slattery and Humeyra PamukANKARA, July 9 (Reuters) - As they prepared for this week's NATO summit in Ankara, the leaders of America's allies wondered which Donald Trump would join them - the friendly U.S. president who has praised the dedication of NATO allies or the testy Trump who has threatened to implode the 77-year-old alliance?It turns out they got both.

President Trump is departing for a pivotal summit with NATO allies after a year in which he's questioned European countries’ sovereignty and doubted the alliance's very utility.…

President Donald Trump and NATO leaders are meeting in Turkey for a summit focused on the alliance's future.