21st century wire say mcmaster go reignite tensions russia follow video stuart j. hooper ask worry general mcmaster replace general flynn trump national security advisor.while flynn understand russia sphere influence world us wary encroach upon mcmaster author report entitle russia new generation warfare study intend ignite wholesale rethink possibly even redesign army event confront russians eastern europe .watch report video read trump news 21st century wire trump filessupport 21wire subscribe become member 21wire.tv worry mcmaster trump national security advisor