REUTERS

Americans are continuing last year's trend of identifying a wide array of entities – including, for the second year in a row, the Islamic State group – as the United States' greatest enemy, according to Gallup poll.

Though the responses are more dispersed, there is continuity at the top. North Korea, Iran and China have consistently ranked high on the list of enemies, dating back to 2005. Americans have not as consistently regarded Russia as the greatest U.S. enemy, but that nation led the list last year.