North Korea Conducted A Successful SLBM Test Last Month

Photograph of a SLBM test launch released by Pyongyang in May, 2015. Yonhap

38 North: North Korea’s Ballistic Missile Submarine Program: Full Steam Ahead

A 38 North exclusive with analysis by Joseph S. Bermudez Jr.

Reports of a North Korean “ejection” test of the Bukkeukseong-1 (Polaris-1, KN-11) submarine-launched ballistic missile (SLBM) on December 21, 2015, appear to be supported by new commercial satellite imagery of the Sinpo South Shipyard. This imagery also indicates that despite reports of a failed test in late November 2015 North Korea is continuing to actively pursue its SLBM development program.

Specifically:

More News On North Korea Conducting A Successful SLBM Test Last Month

North Korea still working on submarine ballistic missile despite reported setback -- The Guardian/AP
North Korea Conducts Submarine Missile Test, Report Says -- Bloomberg
N. Korea test-fired SLBM last month: S. Korean military -- Yonhap News Agency
North Korea successfully conducts SLBM test last month: U.S. report -- Korea Herald
North Korea Conducts Successful Submarine Missile Test -- Washington Free Beacon
North Korea continues sea launched ballistic missile development at brisk pace -- Washington Times