GLENN: President Trump just got finished with his address to the United Nations. As expected, went strong on North Korea. Quote, if the righteous many don't confront the wicked few, then evil will triumph. End quote.

That is a great line.

But what happens if from Trump's perspective, there is a lack of righteous many willing to step forward. Does that mean America is willing to go it alone? According to his speech today at the United Nations, it kind of sounds like it.

He -- he said a phrase that made my blood run a little chilly. That if the United States is, quote, forced to defend itself and its allies, we will have no choice, but to totally destroy North Korea.

Holy cow. What -- what?

Now, that is either a whole lot of bravado, or this situation is on the verge of spiraling out of control. Yesterday, Defense Secretary Mattis said that kinetic military options that could ensure the safety of Seoul were viable and on the table.

I'm -- I'm curious. Is the survival of the South Korean capital the only thing holding Trump back here?

Because we know that a nuclear-armed North Korea doesn't threaten South Korea.

Kim Jong-un is not going to nuke Seoul with an ICBM. That's the threat that the United States has to deal with.

Perhaps the statement at the end of his speech was a hint to South Korea. He said, quote, in foreign affairs, we are renewing this founding principle of sovereignty.

This is such a great line. As president, I will always put America first, just like you as leaders of your countries will always do. And you should always put your country first.

All responsible leaders have an obligation to serve their own citizens. Our government's first duty is to its people, end quote.

I'm not sure if we're nearing the endgame in this standoff. I'm not sure. But I do know it's not making me more comfortable every day that goes by.

Ultimately, it may come down to an outcome we have not seen since World War II. And if it does, the world changes dramatically overnight. Let us all pray that cooler heads will prevail.