KEY POINTS
  • 76 percent of Americans fear a major war in the next four years, an NBC News poll found.
  • "Very worried" or "somewhat worried" respondents are up 10 percent from a February survey.
  • Both Democrat- and GOP-affiliated Americans rank North Korea as the most immediate concern to national security.
This undated picture released from North Korea's official Korean Central News Agency (KCNA) on May 5, 2017 shows North Korean leader Kim Jong-Un inspecting the defence detachment on Jangjae Islet and the Hero Defence Detachment on Mu Islet.

Even as health care dominates the political discussion in Washington, national security remains at the forefront of Americans' minds.

More than three quarters of Americans fear that the United States will enter into a major war sometime within the next four years, an NBC News national security poll found.