Current Events-War preparation

https://www.usatoday.com/story/news/world/2017/08/31/u-s-south-korean-and-japanese-warplanes-carry-out-show-force-against-north-korea/619561001/

U.S., Japanese and South Korean warplanes carried out a show of force against North Korea, as Russia warned the United States that new sanctions against the reclusive nation would be “dangerous.”