TOKYO -- The arrival of a large U.S. nuclear-powered submarine in South Korea last Friday amounts to a "dress rehearsal" for the upcoming visit of a nuclear ballistic missile submarine (SSBN), analysts say.
The guided-missile submarine USS Michigan is visiting the southeastern port city of Busan amid geopolitical tensions driven by North Korea's ongoing weapons testing, and at a time when Seoul and Washington are bolstering their military cooperation to deter Pyongyang.
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