Fox Business 2015 GOP primary debate: on War & Peace

Carly Fiorina: Aggressive exercises in Baltic; more US troops in Germany

FIORINA: I would not be talking to Vladimir Putin right now, because we are speaking to him from a position of weakness brought on by this administration, so, I wouldn't talk to him for awhile, but, I would do this: I would start rebuilding the Sixth Fleet right under his nose, rebuilding the missile defense program in Poland right under his nose. I would conduct very aggressive military exercises in the Baltic States so that he understood we would protect our NATO allies. And I might also put in a few more thousand troops into Germany, not to start a war, but to make sure that Putin understand that the United States of America will stand with our allies

Q: Gov. Bush suggests a no-fly zone in Syria while Donald Trump says no. Your opinion?

FIORINA: Gov. Bush is correct. We must have a no fly zone in Syria because Russia cannot tell the United States of America where and when to fly our planes.

Chris Christie: I'll fly Air Force One over China's artificial islands

And they're building those artificial islands in the South China Sea and the president, up until recently, wouldn't sail a ship within 12 miles or fly a plane over it. I'll tell you this, the first thing I'll do with the Chinese is I'll fly Air Force One over those islands. They'll know we mean business.

Donald Trump: Assad is a bad guy, but his replacement could be worse

TRUMP: Assad is a bad guy, but we have no idea who the so-called rebels--nobody even knows who they are.

Carly FIORINA: Governor Bush is correct. We must have a no fly zone in Syria.

TRUMP: So, I don't like Assad. Who's going to like Assad? But, we have no idea who these people, and what they're going to be, and what they're going to represent. They may be far worse than Assad. Look at Libya. Look at Iraq. Look at the mess we have after spending $2 trillion dollars, thousands of lives, wounded warriors all over the place--we have nothing. And, I said, keep the oil. And we should have kept the oil, believe me. We should have kept the oil. And, you know what? We should have given big chunks of the oil to the people that lost their arms, their legs, and their families, and their sons, and daughters, because right now, you know who has a lot of that oil? Iran, and ISIS.

Jeb Bush: We should have a no fly zone in Syria

BUSH: Let ISIS take out Assad, and then Putin will take out ISIS? That's not how the real world works. We have to lead, we have to be involved. We should have a no fly zone in Syria. They are barrel bombing the innocents in that country. If you're a Christian, increasingly in Lebanon, or Iraq, or Syria, you're going to be beheaded. And, if you're a moderate Islamist, you're not going to be able to survive either. We have to play a role in this be able to bring the rest of the world to this issue before it's too late.

TRUMP: Assad is a bad guy, but we have no idea who the so-called rebels--nobody even knows who they are.

Carly FIORINA: Governor Bush is correct. We must have a no fly zone in Syria because Russia cannot tell the United States of America where and when to fly our planes.

John Kasich: Work with allies like Israel, Egypt, Jordan

Marco Rubio: ISIS hates our way of life; either they win or we win

Rand Paul: A no-fly zone in Iraq means shooting war with Russia

TRUMP: If Putin wants to go and knock the hell out of ISIS, I am all for it, 100%. We can't continue to be the policeman of the world.

BUSH: Donald's absolutely wrong on this. We have to be involved. We should have a no fly zone in Syria.

FIORINA: Gov. Bush is correct. We must have a no fly zone in Syria because Russia cannot tell the USA where and when to fly our planes.

PAUL: You're asking for a no fly zone in an area in which Russia already flies. Russia flies in that zone at the invitation of Iraq. I'm not saying it's a good thing, but you better know at least what we're getting into. So, when you think it's going to be a good idea to have a no fly zone over Iraq, realize that means you are saying we are going to shoot down Russian planes. If you're ready for that, be ready to send your sons and daughters to another war in Iraq. You can be strong without being involved in every civil war around the world.

Rand Paul: Arming al Qaeda let it become ISIS