NATO chief Jens Stoltenberg has warned Europe against undermining transatlantic ties, following a defence spat between US President Donald Trump and French leader Emmanuel Macron.
Financial and political stability in Turkey is critical to Europe. But EU leaders are finding it hard to help end an ongoing crisis in Turkey amid long-standing tensions with Ankara.
The EU has been trying to convince US President Donald Trump, a fierce critic of the 2015 deal with Iran, to stick with the agreement.
New US Secretary of State Mike Pompeo took aim at Germany over its defence spending, using his first NATO meeting to push President Donald Trump's call for allies to shoulder a bigger burden.