After Russia Military Threat, Sweden and U.S. Hold Massive Missile Drills Swedish armed forces soldiers attend a rehearsal in front of the Royal Palace in Stockholm on June 18, 2010. Fabrizio Bensch/Reuters Sweden, one of Europe's last remaining neutral militaries, will host U.S. missile systems and a handful of troops from NATO allies in a marquee exercise this autumn. Aurora 2017 will be Sweden'