"If you don't succeed at first, try, try and try again." That old saying could be the motto for the Russian navy, which is pushing ahead with at least three more test launchings of its much-troubled Bulava submarine-launched ballistic missile this year. "We are planning three test launches of the Bulava missile from the Dmitry Donskoi submarine. If the tests are successful, they will continue on board the new Yury Dolgoruky nuclear-powered submarine," Vice Adm. Oleg Burtsev, deputy chief of the navy general staff, announced March 19, according to the RIA Novosti news agency. The solid-fuel Bulava is an adaptation...