(CNN)The U.S. Air Force will send six F-15s to Finland this spring for exercises that will operate out of a base about 100 miles from the border with Russia, military officials say.
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https://dninews.com/article/us-boosting-northern-front-against-russia-f-15-fighter-jets-finland-greatest-secrecy
http://www.cnn.com/2016/02/15/politics/u-s-f-15-finland-training-exercise/index.html