Russian military interfered with GPS signals during NATO war games
U.S. Admiral James G. Foggo (R), commander of the NATO Trident Juncture exercise, and Norway's Chief of Defense Admiral Haakon Bruun-Hanssen. Photo: Ole Martin Wold/AFP/Getty Images
The big picture: Held between Oct. 25 and Nov. 23, it was NATO's largest military exercise since the Cold War. It came about a month after Russia held its own massive war games, which Kremlin spokesman Dmitry Peskov said was in response to "the current international situation, which is often quite aggressive and unfriendly to our country."