In the wake of recent missile tests, 71% of American voters say that Iran represents a serious threat to the United States and 82% believe that nation is a threat to Israel. Those figures include 30% who consider Iran a Very Serious threat the United State and 56% who see it as a Very Serious threat to Israel.

The latest Rasmussen Reports national telephone survey also found that 46% believe the U.S. should intervene militarily if Israel is attacked by Iran. On that point 32% disagree. Men overwhelmingly support a military response while women are evenly divided.

But, the number of voters who think it’s at least somewhat likely that the U.S. will be at War with Iran in the next year has fallen to 43%. Last October, 53% thought such a war was at least somewhat likely. In October, 19% thought war with Iran was Very Likely, that figure is down to 13% today.

The decline can be traced to changing perceptions among Democrats. Last fall, 58% thought that an Iranian war was likely. Now, just 37% of those in Barack Obama’s party hold that view. There was no change among Republicans and no significant change among unaffiliated voters.

Partisan differences are more significant on the question of what the U.S. should do if Iran attacks Israel. By a 70% to 12% margin, Republicans say the U.S. should respond militarily if Israel is attacked. Forty-five percent (45%) of Democrats oppose a military response while 30% support it. Unaffiliated voters are evenly divided.

Voters under 30 oppose a military response by a 50% to 32% margin. Older voters are somewhat more supportive of that approach.

Earlier surveys have found that most voters doubt economic sanctions will succeed in getting Iran to scuttle its nuclear weapons program.

Partly, that’s because most voters doubt the United States can count on its European allies when dealing with Iran. Another survey from last year found that 40% favor using military force to prevent Iran from developing nuclear weapons capabilities. Just 1% of Americans view Iran as an ally and 62% believe that nation sponsors terrorist attacks against the United States.

Thirty-four percent (34%) of voters say they have been following recent news stories of Iran’s missile tests Very Closely. Another 36% have followed the stories Somewhat Closely.

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