Peninsula sees dueling missile launches from both Koreas

출처#1. https://koreajoongangdaily.joins.com/2021/09/15/national/northKorea/missile-test-North-Korea/20210915194112292.html

Peninsula sees dueling missile launches from both Koreas

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The Korean Peninsula was the site of dueling launches on Wednesday as North Korea fired two tactical ballistic missiles around mid-day, followed by South Korea testing a new submarine-Launched ballistic missile (SLBM) later in the afternoon.

The North fired first on Wednesday, sending two ballistic missiles into the waters east of the Korean Peninsula
The JCS said the missiles flew a distance of approximately 800 kilometers (500 miles) while reaching an altitude of 60 kilometers (37 miles).

 the South tested two different types of missiles on Wednesday: a long-range air-to-surface missile and a supersonic anti-ship missile, according to military authorities.
These weapons are expected to serve as a deterrent to nuclear-armed North Korea. Even though the South is equipped with conventional — not nuclear — warheads, they enhance the country's capacity to retaliate or counter an attack.

The SLBM was fired from the Navy submarine Dosan Ahn Chang- ho, as was the case two weeks prior, and took the form of a cold launch, in which the SLBM’s engine ignites after it is first pushed out of the water with air pressure, according to military officials.

Cruise missile tests are not technically banned under Security Council resolutions because most cruise missiles are not designed to carry nuclear warheads.
Modern cruise missiles are harder to detect and intercept because they are often self- navigating and able to fly on extremely low-altitude trajectories compared to ballistic missiles.
Cruise missiles are also often equipped with sensors to evade interception and active radar homing seekers to guide them to their targets, greatly enhancing their precision. 
In contrast, ballistic missiles are powered only for a short portion of an arching flight path. Longer range ballistic missiles travel outside the atmosphere and are designed to carry heavier payloads such as nuclear warheads.