Tensions ramp up as North Korea test-launches multiple cruise missiles

U.S. to send nuclear submarines to protect South Korea
01:53
Video shows North Korea's new 'solid-fuel ICBM launch'
00:48
North Korean missile test leads to warning sirens in Japan
01:27
Suspected ballistic missile believed to have already fallen, say Japanese officials
02:30
North Korean underwater drone can trigger radioactive tsunami, state media say
01:11
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Tensions ramp up as North Korea test-launches multiple cruise missiles
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U.S. to send nuclear submarines to protect South Korea
01:53
Video shows North Korea's new 'solid-fuel ICBM launch'
00:48
North Korean missile test leads to warning sirens in Japan
01:27
Suspected ballistic missile believed to have already fallen, say Japanese officials
02:30
North Korean underwater drone can trigger radioactive tsunami, state media say
01:11
Now Playing
Tensions ramp up as North Korea test-launches multiple cruise missiles
05:03