Hope for the best, prepare for the worst. That is the mantra the United States and Russia are abiding by as they plan for a tense few years ahead. In critical areas, including the conflicts in Syria and Ukraine and arms control negotiations, both countries would genuinely like to negotiate viable solutions. Nevertheless, the mistrust between the two runs deep, and vast differences of opinion and outright conflicts of interest will continue to undermine efforts to reach a comprehensive deal. With little hope of a positive outcome, the strategic decision-makers in Washington and Moscow are cementing their security positions against each other during this period of significant hostility . The critical 2016 Warsaw summit, to be held July 8-9 among NATO members, is fast approaching. Out of the summit, the United States hopes a clear, united purpose will emerge for the divided security alliance.