Conversation so far:
What are Charles Krauthammer's political views?
Krauthammer was a supporter of abortion legalization and opposed to euthanasia. Krauthammer was a longtime advocate of radically higher energy taxes to induce conservation.
Does the article mention Charles Krauthammer's on foreign policy?
The foreign policy, he argued, should be both universal in aspiration and prudent in application, thus combining American idealism and realism.

Question: Could you expound more on his foreign policy views?
Self-contained rewrite: Could you expand more on Charles Krauthammer's foreign policy views?