U.S. sees ‘highly unusual’ submarine activity from North Korea

U.S. sees ‘highly unusual’ submarine activity from North Korea
Dear Shipmate watches sub sailors take a bow after mighty and powerful ballistic missile launch in 2015. (Image: Screen grab of North Korean state video via YouTube, stimmekoreas (user))

[Ed. – The activity described is indeed extremely unusual.  Alongside the very rare operations last month of the newer Gorae/Sinpo class sub, which serves as a testbed for a ballistic missile submarine capability, the level of activity and unusual range at sea is unprecedented.  Most North Korean sub activity is very close to shore.]

The US military has detected “highly unusual and unprecedented levels” of North Korean submarine activity and evidence of an “ejection test” in the days following Pyongyang’s second intercontinental ballistic missile launch this month, a defense official told CNN on Monday.

An ejection test examines a missile’s “cold-launch system,” which uses high pressure steam to propel a missile out of the launch canister into the air before its engines ignite. …

Carried out on land at Sinpo Naval Shipyard, Sunday’s ejection test is the third time this month — and fourth this year — that North Korea has conducted a trial of the missile component that is critical to developing submarine launch capabilities, according to the US defense official.

US officials also noted that a North Korean Sang-O submarine was operating in the Yellow Sea and the length of its deployment was notable. Two Romeo submarines were detected in the waters off Japan — each one operating in the area for about a week.

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