LIVE Dow Set to Open Down Ahead of Crunch Jobs Data Last Updated: 15 min ago Defense Stocks Tumble as U.S. Offers Ukraine Security Guarantee By Joseph Michael Stonor, Dow Jones Newswires European defense stocks sell off steeply after the U.S. offered Ukraine a security guarantee that could help bring the continent closer to peace. A basket of the continent's defense-related stocks—represented by the Stoxx Europe Total Market Aerospace and Defense index—traded down 1.9%. The best performing stock in the inde ...