 The Soviet Union was aware of previous NATO training exercises, however not enough intelligence was obtained to prove the harmlessness of the Able Archer 83 exercises, thus leading to rising tensions.After the idea of a war game was proposed, Karber brought in a Harvard professor, Thomas Schelling, to help design a game testing out the various proposals and strategies listed above.Schelling told Weinberg shortly after accepting the position that he believed the senior government leaders were incredibly unprepared to deal with making important decisions, should one of the strategies realistically happen.