JD and Usha Vance, as well as national security adviser Mike Waltz, traveled to Greenland on Friday, where they visited Pituffik Space Base and met with service members. ––– Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G ABC News is your daily source of breaking national and world news, exclusive interviews and 24/7 live streaming coverage. Download the ABC News app for the latest headlines and alerts: https://abcnews.go.com/devices Watch 24/7 coverage of breaking news