Washington DC, March 4 -- American voters are evenly divided over the current US military action against Iran, even as a clear majority views the country as a national security threat, according to a Fox News national survey.

Overall, the polls showed that eight in 10 Republicans approve of the current US use of force, while nearly 8 in 10 Democrats disapprove and 6 in 10 independents disapprove. Among voters who have served in the military, 59 per cent approve of the US strikes on Iran.

The poll found 61 per cent of registered voters believe Iran poses "a real national security threat" to the United States, a figure largely consistent with previous Fox News surveys dating back to 2006. The exception was last June, when concern spiked t...