Some 3,000 elite troops from the United States, the United Kingdom and 22 other nations are taking part in NATO's biggest special forces exercise in Europe. The 10-day event, spanning 10 countries, is designed to test responses to attempts by an unnamed enemy to infiltrate NATO territory and launch sabotage, cyber and other attacks under the threshold of all-out war. Read more: https://news.sky.com/story/natos-biggest-special-forces-exercise-in-europe-takes-place-as-us-reduces-support-for-