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May 09, 2025May 09, 2025

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Colin Zwirko

Colin Zwirko

Colin Zwirko is a Senior Analytic Correspondent for NK News based in Seoul. He joined the company in 2018 after receiving a master's degree in international security and foreign policy from South Korea's Yonsei University. Follow him on Bluesky / Twitter.

More articles by 'Colin Zwirko'

North Korea conducts first ballistic missile test in 2 months: JCS

North Korea conducts first ballistic missile test in 2 months: JCS

Launch of ‘multiple’ missiles from east coast follows several arms factory inspections by leader Kim Jong Un this week

North Korea conducts first ballistic missile test in 2 months: JCS
Colin Zwirko
Colin Zwirko May 8, 2025
Kim Jong Un calls for increased artillery production amid mass exports to Russia

Kim Jong Un calls for increased artillery production amid mass exports to Russia

North Korean leader also demands major reconstruction of plant building weapons manufacturing equipment

Kim Jong Un calls for increased artillery production amid mass exports to Russia
Colin Zwirko
Colin Zwirko May 7, 2025
North Korea appears to expand Kim mansion missile test site with new launchpads
NK PRO

North Korea appears to expand Kim mansion missile test site with new launchpads

Imagery points to work to conceal new infrastructure at sprawling compound in Pyongyang, in sign of more testing to come

North Korea appears to expand Kim mansion missile test site with new launchpads
Colin Zwirko
Colin Zwirko May 6, 2025
Kim Jong Un calls for mass-producing newest tanks in visit to upgraded factory

Kim Jong Un calls for mass-producing newest tanks in visit to upgraded factory

KNCA report marks first confirmation that Kusong factory also produces nuclear missile launchers

Kim Jong Un calls for mass-producing newest tanks in visit to upgraded factory
Colin Zwirko
Colin Zwirko May 5, 2025
North Korea overhauling more prisons in apparent nationwide project
NK PRO

North Korea overhauling more prisons in apparent nationwide project

NK Pro has identified upgrades at 7 existing ‘reeducation’ facilities as well as construction of brand new prison

North Korea overhauling more prisons in apparent nationwide project
Colin Zwirko
Colin Zwirko May 5, 2025
North Korea prioritizes shipyard construction as major naval base project stalls
NK PRO

North Korea prioritizes shipyard construction as major naval base project stalls

Imagery shows work hasn’t begun on east coast base set to host new destroyer, despite Kim Jong Un’s demand for upgrades

North Korea prioritizes shipyard construction as major naval base project stalls
Colin Zwirko
Colin Zwirko April 30, 2025
North Korea tests missiles from new warship, including new ‘supersonic’ weapon

North Korea tests missiles from new warship, including new ‘supersonic’ weapon

Kim Jong Un oversees initial trials for destroyer that provide first look at cruise missile with dolphin-nose design

North Korea tests missiles from new warship, including new ‘supersonic’ weapon
Colin Zwirko
Colin Zwirko April 30, 2025
North Korea launches largest new warship, states aim to sail beyond peninsula

North Korea launches largest new warship, states aim to sail beyond peninsula

Kim Jong Un blames US for rising tensions at ceremony for new 5,000-ton destroyer equipped to carry over 70 missiles

North Korea launches largest new warship, states aim to sail beyond peninsula
Colin Zwirko
Colin Zwirko April 26, 2025
North Korea building first new large prison in decades in sign of rising ‘crime’
NK PRO

North Korea building first new large prison in decades in sign of rising ‘crime’

Exclusive NK Pro analysis finds new construction is part of at least five major prison projects ongoing around country

North Korea building first new large prison in decades in sign of rising ‘crime’
Colin Zwirko
Colin Zwirko April 10, 2025
North Korea’s ‘new’ sniper rifle likely Austrian import or copy: Analysis
NK PRO

North Korea’s ‘new’ sniper rifle likely Austrian import or copy: Analysis

Rifle tested by Kim Jong Un ‘appears identical’ to Austrian-made model, says expert, but company denies any link to DPRK

North Korea’s ‘new’ sniper rifle likely Austrian import or copy: Analysis
Colin Zwirko
Colin Zwirko April 8, 2025
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