About the Author

Colin Zwirko
Colin Zwirko is a Senior Analytic Correspondent for NK News based in Seoul. Follow him on Twitter @ColinZwirko.
This is a developing story. Please check back for updates. (Updated at 4:10 p.m. KST on March 19, 2023 with details about US-ROK air drills.)
North Korea fired one short-range ballistic missile (SRBM) eastward on Sunday morning, according to South Korea’s Joint Chiefs of Staff (JCS).