![Crew members on board the American guided-missile destroyer USS Gravely moored at the French Quay in Poland EPA](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/3PZHRLUZ7ZQFBQ3IOKLNM4SPGY.jpg?smart=true&auth=580f283a7f85783316e7afe78d716f396e82b7fc71e77ced4c50e0f34371c130&width=400&height=225)
Crew members on board the American guided-missile destroyer USS Gravely moored at the French Quay in Poland EPA
Crew members on board the American guided-missile destroyer USS Gravely moored at the French Quay in Poland EPA
Nato summit: US to set up permanent army HQ in Poland in face of Russia threat
Alliance set to place 300,000 troops on high alert on its eastern flank