 Pentagon is confident it can stop N Korean ICBM Washington (AFP) July 5, 2017 - The Pentagon is confident it can protect the United States against an incoming North Korean rocket, an official said Wednesday following Pyongyang's first successful test of an intercontinental ballistic missile. Tuesday's launch saw North Korean leader Kim Jong-Un fire a new type of missile from Panghyon aircraft plant, a site not previously associated with his missile program, Pentagon spokesman Navy Captain Jeff Davis said. Though the Pentagon initially said the missile was intermediate in range, updated analysis later showed its range "likely" exceeded 5,500 kilometers (3,400 miles), making it capable of reaching Alaska and so changing its designation to intercontinental ballistic missile (ICBM), Davis said. In May, the US military launched a ground-based interceptor from Vandenberg Air Force Base that for the first time successfully hit an ICBM-type target. "We do have confidence in our ability to defend against the limited threat, the nascent threat that is there," Davis said, pointing to the missile defense system. Davis slammed North Korea's latest test for putting shipping, air traffic and even satellites at risk, though he said there was no known damage from the missile, whose re-entry vehicle that sits atop the rocket later splashed into Japan's Exclusive Economic Zone. The United States has layers of missile defense capabilities comprising several components designed to take down different types of missile at different phases of flight. "We do have confidence in (our ballistic missile defense capability), that's why we've developed it," Davis said. "We've sought from the beginning of developing this capability to be able to outpace the threat." He noted that North Korea is still a way off from developing a nuclear-tipped ICBM, saying that Pyongyang had yet to demonstrate a re-entry vehicle capable of being tactically deployed. "But clearly they are working on it," he said.
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It is every Alaskan's nightmare: finding themselves within range of a North Korean missile. As that fear came one step closer to reality this week, America's ability to block an incoming attack is under scrutiny.
On Tuesday the northwestern US state awoke to the news that Pyongyang had test-fired an intercontinental ballistic missile which -- though it came crashing down in the Sea of Japan -- had a probable range of over 5,500 kilometers (3,400 miles), enough to reach Alaskan shores.
The US military has faith that its high-tech defensive systems could fend off any attack from North Korea -- at least for now.
"It's something we have confidence in," said Pentagon spokesman Navy Captain Jeff Davis, who called the latest development a "nascent threat."
But other observers are not so sure, rattled by the pace of Kim Jong-Un's missile program and his stated aim of building a nuclear-tipped ICBM.
"Now more than ever, it's imperative for Alaskans and the rest of the nation that we be prepared," tweeted Senator Dan Sullivan, one of several Alaskan congressmen who backed a bipartisan bill last month aimed at expanding US missile defenses.
The state of 750,000 people already hosts a key element of the country's current defense system.
The Ground-based Midcourse Defense (GMD) system -- installed at Fort Greely, about 100 miles outside Fairbanks in Alaska, and California's Vandenberg Air Force Base -- will comprise 44 missile interceptors by the end of the year.
But if the backers of the Advancing America's Missile Defense Act of 2017 have their way, the government would authorize an additional 28 ground-based interceptors at Fort Greely.
Among the bill's co-sponsors is Alaskan Congressmen Don Young, who believes "the recent actions by North Korea, a rogue and irrational regime, underscores the importance of Alaska's missile defense systems," his office said in a statement.
- Missile 'leakage' -
The catastrophic scenario of having to stop an incoming ICBM as it hurtles through space was put to the test in May, when the military successfully launched a GMD interceptor from the California base.
The missile blasted outside Earth's atmosphere and smashed into a dummy ICBM target, destroying it in a direct collision -- a move akin to hitting a bullet with another bullet.
But the GMD system has had a checkered record in previous tests -- failing in earlier launches against slower-moving targets.
And it could be overwhelmed by a barrage of incoming missiles.
That is why Joel Wit, a co-founder of the 38 North program of the US-Korea Institute at Johns Hopkins University, said he was not fully confident in US anti-missile capabilities.
He sees a risk that Kim could build enough missiles to overwhelm US defenses -- and that one could slip through the defensive net in a phenomenon known as "leakage."
"In the case of a conflict, leakage with nuclear weapons is not a good thing," Wit told AFP.
Wit had previously said he didn't think North Korea would be able to deploy any nuclear-tipped ICBMs until late 2020 or soon after, but all bets are off given the latest test.
"It's quite possible the North Koreans could deploy much sooner than then, and do that for the shock effect," he said.
Experts do not think Kim has managed to miniaturize a warhead to put on an ICBM, though Kim has repeatedly stated that is his goal.
"Clearly they are working on it," Pentagon spokesman Davis said.
- What other defenses? -
Aside from the GMD, the US and its allies also have at their disposal what is known as the Aegis Ballistic Missile Defense System (AEGIS).
The ship-based system's highly sensitive radars and sensors feed ICBM-tracking data to the GMD facilities in California and Alaska, and AEGIS is itself capable of intercepting shorter-range missiles.
Retired vice admiral Pete Daly, who now leads the United States Naval Institute, said the AEGIS system may also one day have a limited ability to intercept ICBMs.
"There is some progression and capabilities here that folks are working on," he told AFP.
In the meantime, the US military this year began deploying the Terminal High Altitude Area Defense (THAAD) system to South Korea, capable of destroying short, medium and intermediate-range missiles in their final phase of flight.
The move infuriated China, which has argued the deployment would further destabilize the situation on the Korean peninsula.
The US and its allies South Korea and Japan also have Patriot Advanced Capability-3 interceptor batteries. But these are designed to protect against a regional threat and would have limited effect against an ICBM.
Integrating all three systems -- THAAD, Aegis and Patriot -- is another key proposal in the legislation championed by Sullivan and Young.
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