U.S. citizens to active combat missions by the U.S. military

Reading support:
The statistic is an opinion poll of U.S. citizens on the subject of whether it will come to active combat missions by the U.S. military in the next 20 years on a regular basis throughout the world, or whether a longer period of no combats will be the case. 30 percent of respondents believe, that there will be long periods without active combat operations.