Trump: 26.9 percent

Sanders: 21.91 percent

Texas Sen. Ted Cruz: 16.7 percent

Hillary Clinton: 11.17 percent

Florida Sen. Marco Rubio: 9.33 percent

Ohio Gov. John Kasich: 7.7 percent

Army: Trump, 30.95 percent; Sanders, 17.26 percent

Navy: Sanders, 29.25 percent; Trump, 23.58 percent

Marines: Trump, 30.7 percent; Sanders and Cruz tied with 15.79 percent

Air Force: Sanders, 24.71 percent; Trump, 22.35 percent

GOP presidential front-runner Donald Trump and Democratic contender Sen. Bernie Sanders are the U.S. troops' top choices to become the next commander in chief, a new survey shows.The unscientific survey was released Tuesday by Military Times — based on the responses from 931 active-duty troops, reservists and members of the National Guard — shows the outsider candidates' messages are resonating with the men and women in uniform.Here's the breakdown:Preferences by service break down like this:Military Times reports nearly half of the service members surveyed said they were unhappy with the discussion of national security issues in the presidential race so far. Fewer than 5 percent were "very satisfied" with how the topic has been broached.About half of the survey-takers were enlisted service members, Military Times reports.Among officers, Trump still led the field, but by a much smaller margin, with his 21 percent slightly outpacing Cruz at 18 percent, Sanders at 16 percent and Clinton at 15 percent.The former head of U.S. Central Command, Marine Corps Gen. James Mattis, received one write-in vote, Military Times reports. Mattis, who retired in 2013, is revered among many rank-and-file troops for his unapologetic frankness.