A new opinion poll released Thursday shows Americans in continued support of the goal to “downgrade and ultimately destroy” the Islamic State (ISIS), as President Obama has articulated it.

The poll, “American Public Attitudes Towards ISIS and Syria,” also reveals some reservations about the effectiveness of the Obama administration’s air-only campaign to keep ISIS from grabbing more territory and massacring more civilians. With Congress in session potentially considering an authorization to use military force, it also indicates that Democrats and Republicans hold different views of the fight against ISIS.

The new poll was conducted by Middle East scholar Shibley Telhami, director of the Project on U.S. Relations with the Islamic World at Brookings in collaboration with the University of Maryland’s Anwar Sadat Center.

It goes into some detail on the attitudes that underpin the so far widespread American support for the international coalition against ISIS.

Among the survey’s notable findings:

  • Seventy percent of Americans believe ISIS is the biggest threat in the Middle East, compared to 12 percent seeing Iran as such and 13 percent the Israeli-Palestinian conflict.
  • Only 14 percent of Americans believe that Muslims globally support ISIS.
  • Fifty-seven percent of Americans believe we have to confront ISIS at a “necessary level.”
  • Yet 57 percent oppose the deployment of U.S. ground troops; 41 percent support ground troops.
  • Of those who support U.S, ground troops, 53 percent are Republicans, 36 percent Democrats and 31 percent Independents.
  • Fifty-six percent believe ISIS will be defeated, but will return in some form down the road. Only 20 percent of Americans are optimistic that ISIS will be defeated and never return.

American support for military action against ISIS was caused by absolute revulsion against the horrific Internet videos of ISIS executions of journalists and aid workers in September, including two Americans, James Foley and Steven Sotloff.

It could therefore be questioned whether support could be sustained in the long run for a campaign that will take years. However, Tuesday’s massacre of French journalists has yet again reminded the world of the persistent threat posed by violent Islamic fanatics. Americans will not be allowed to forget the danger to our security and way of life.

The survey was based on interviews conducted with 1,008 adult Americans Nov. 14 through 19, 2014.