The Afghanistan War Over Time

The war in Afghanistan was launched shortly after the 9/11 attacks and has become the longest war in U.S. history, spanning almost 18 years. In November 2001 89% of Americans supported entering the war. However, as detailed by Politico, this number was cut in half by 2015, with only 42% defending America’s entrance into Afghanistan. While we know that civilian support for the Afghanistan war has generally decreased over the years, it is less known how views within military personnel groups have changed with time.

Our data finds that support for the war in Afghanistan has linearly declined by just over 20% from 2002 to 2017 in both military groups and civilians. However, military support for the war effort consistently rates at about 30% higher than civilian support, as displayed through trend lines. The difference between the groups is so profound that only the initial two years of data from civilians (68.9% and 81.1% in support) surpass the lowest point of support in military (64.7%). The data set for academy and ROTC cadets is also more linear, which may suggest that their views are more focused due to close handling of the conflict.


Why would cadets show significantly more support for the war effort when they are the ones who must put themselves in harms way? Earlier research using these data shows that military affiliation is associated with favorable attitudes toward going to war (see here). Much of the difference between the two groups can be explained by political ideology and gender. Whatever is producing these differences, there is a clear parallel in which both groups’ support has declined over time, yet the gap remains.

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