Christopher S. Murphy: “We can no longer afford to give participation trophies to free riding allies unwilling to do their part.”

Had Europe listened to the Trump administration on the need to increase its defense spending... Europe would have been in a much stronger position.

If President Trump does win, I would encourage Europe at this time to adopt a more constructive approach.

One of China's most effective national security tools is propaganda and misinformation.

Let us be clear. Xi Jinping wants and is invested in Putin winning.