As you watch tonight’s presidential debate between President Barack Obama and Mitt Romney on foreign policy, remember this: there are few things Americans care less about than foreign policy. And, conveniently, there are fewer things Americans know less about than foreign policy.

But Americans have opinions, nonetheless. Since 2010, there have been more Americans saying they wanted to pull troops out of Afghanistan as soon as possible than those saying the United States should stabilize that country first. By a roughly 60-30 percent gap, Americans are more worried about China’s economic strength than its military power. More than 60 percent have no faith that sanctions will sway Iran to give up its nuclear program. And more than 65 percent of Americans think the administration is treating Israel just fine. As for Russia, only 2 percent of Americans think it’s the greatest threat to the United States.

National security is not run by referendum, however. But keep those statistics and these others released last Friday in mind when Obama and Romney try to strike a balance tonight between looking like a strong commander-in-chief, but not one who is wasteful or itching to get the U.S. too involved around the world. Americans want a tough president, but one who is ready to focus his attention back home, according to the Pew Research Center’s latest findings.

What does that mean for these five issue areas that have been announced for tonight’s debate?

“America’s Role in the World”

This topic goes to the heart of the U.S. military’s footprint around world and how the next president intends to use it -- and never mind the militarization of foreign policy, because that’s a phrase barely mentioned in the Pentagon. Obama has presented Congress a five-year plan that offers a robust global counterterrorism presence with a significant downsizing of the Army and Marine Corps, a plan strongly backed by the Joint Chiefs of Staff, and a pivot/rebalancing toward Asia. That means a leaner military. Defense spending could get aired out tonight here and it could be interesting. The brass are on record that they want to reset, refit, and retrain the force for the post-Iraq and Afghanistan world. Few are calling for what Romney is advocating: a significant increase in the troop presence in the Middle East and a 4 percent GDP-sized spending account for the Pentagon. More likely, the candidates will present their views in basest of terms: the open hand of Obama versus the “no apology” of Romney and American exceptionalism. But will they challenge each other?

“Our Longest War -- Afghanistan and Pakistan”

There is less daylight between Obama and Romney on any topic than Afghanistan. That’s mostly because Romney has not offered any different course other than promising to be more attentive to commanders on the ground, which allows him to imply Obama has not done so. In his Tampa acceptance speech, Romney didn’t mention Afghanistan. Republicans are divided over what to do there next. And even though Democrats by 98 percent think Obama’s pullout order too slow, the president gives Romney little room here. The U.S. and NATO are committed to the 2014 deadline -- whether you believe the U.S. will keep fighting that long or not. Unless moderator Bob Scheiffer draws something out of the candidates, those watching among the 67,000 troops in Afghanistan can expect little more than a rehashing of the justification for extending the war another two years.

“Red Lines -- Israel and Iran”

Romney has tried most to distinguish himself as a better friend to Israel than Obama. But as they speak, the United States and Israel are preparing to begin a massive war game that’s unofficially geared as a united defense against an Iranian missile threat -- the expected response from Tehran should anyone try to knock out their nuclear program.  “Who loves Israel more?” is now staple campaign fare. Look for Obama tonight to defend his love for Israel and press Romney to say what, exactly, he’d do differently than the current administration. Look for Romney to allege that Obama’s sanctions-loving, Israel-ostracizing public posture is only making the region less stable.

“The Changing Middle East and the New Face of Terrorism”

Obama might use some of this time to explain just how extensively the Pentagon is preparing for or engaged in counterterrorism operations country-by-country across the Middle East and North Africa. U.S. officials are working the new post-Arab Awakening governments to secure relationships and military ties they’ll need to track and keep a thumb on al Qaeda and other extremists. Under Obama, security and stability still drives Middle East policy. Romney will likely continue to hit Obama on botching Benghazi, on not helping the Syrian rebels enough, and for allowing extremism to spread throughout the region. It could be the most interesting exchange of the night, especially if the president opts to highlight U.S. military activity in the region under his watch.

“The Rise of China and Tomorrow’s World”

For some national security watchers, this topic should be called “The Rise of China’s Military.” But it’s not, for a reason. Most Americans are far more concerned about China’s economic rise than they are about J-20 stealth fighter test runs. Romney has made trade with China a centerpiece of his campaign. Don’t expect a debate over strategic power here -- it’s probably the segment to step out and grab popcorn as the candidates discuss manufacturing jobs and currency manipulation. Or to flip over to what tens of millions of other Americans tonight will actually be paying close attention to: Monday Night Football.