Admiral Harry Harris, commander of the U.S. Pacific Command, spoke before the House Armed Services Committee on Wednesday, calling North Korea “the most immediate threat to the security of the United States.”

Harris’ remarks to the House came on the same day as a historic briefing held for all one hundred members of the Senate at the White House about the same topic.

Harris first discussed North Korea’s recent threats levied toward American ally, Australia.

“[It’s] a powerful reminder to the entire international community that North Korea’s missiles point in every direction,” Harris said. “The only nation to have tested nuclear devices in this century, North Korea has vigorously pursued an aggressive weapons test schedule with more than 60 listed missile events in recent years.”