Fellows at the Hudson Institute are notorious for being
wrong a hundred percent of the time when discussing political or religious
subjects.
Thus, it came as a pleasant surprise that a fellow at the Hudson wrote an article
which makes sense. The subject matter that's tackled is neither political nor
religious, however, but is a scientific summation of the existing defense
capabilities against a missile attack.
The writer is Arthur Herman who wrote: “Boost-Phase Intercept
Is Still the Best Defense against the North Korean Nuclear Threat,” an article
that was published on June 15, 2017 in National Review Online. The writer's
focus is the situation in the Eastern Pacific. I am not adding or subtracting a
thing to what he says. I'm simply highlighting the scientific facts he brought
to light, and applying them to a couple of other regions on the globe. These
would be Europe and the Middle East . What
follows is a compilation of the pertinent passages in the Arthur Herman article:
“Effective ballistic-missile defense is a
boost-phase-intercept (BPI) system using unmanned aerial vehicles (UAVs)
equipped with conventional interceptor missiles. Anti-missile systems such as
THAAD, AEGIS, and Patriot only shoot down a missile as it re-enters the
atmosphere. Destroying the missile in its earlier, 'boost' phase halts it
during the slowest, hottest phase of its launch. Our Agency is working on a BPI
system using UAVs equipped with high-energy lasers, but the lasers don't yet
exist. A (BPI) system located outside North Korea
would not protect South Korea
against a missile fired at Seoul , but it could
prevent a launch on Japan or
the U.S. ”
To appreciate what's involved in intercepting and destroying
an incoming missile, it is necessary to understand the stages through which the
missile goes before reaching its destination. From rest, a missile that's fired
begins to ascend at a low speed, but then accelerates at a rapid rate for a few
minutes. Depending on how far it is destined to go, its average cruising speed
will reach anywhere between half a mile a second and three miles.
The early period, called the boost phase, is when the
missile uses a great deal of fuel; and this makes it easy to detect with heat
sensors stationed even hundreds of miles away. It is also the point at which
the missile – most likely using liquid fuel – travels at its slowest speed. It
is therefore the easiest time to chase after it, intercept it and blow it up
with a faster traveling rocket that uses quick-starting solid fuel.
The question, therefore, is this: Where is the best place to
station your intercept rocket? And the answer is: As near as possible to the
missile's base. But there is a caveat. If the missile is aimed at you, the
chances are very low that you'll intercept it before it destroys your station …
whether or not you have completed the launch. That's because, to hit an
incoming missile, you must intercept it head-on, a difficult thing to do. And
here is why:
Suppose a missile is launched from North Korea , and determined to be heading toward
California .
It happens that intercept rockets are stationed in Hawaii . Is it better to launch a rocket westward trying to intercept the Korean missile head-on? Or is it better to
wait till the missile has come almost above Hawaii , and launch the intercept rocket to
go in the same eastward direction as the missile, accost it to almost touch it,
and blow up, thus destroy it while traveling at the same speed?
You can see that the second proposition is the best because
two vehicles approaching each other at more than 30,000 feet a second are more
difficult to intercept than hitting a bullet head-on with another bullet.
When you understand all that, it'll be easy to see why the
Eastern Europeans would be unhappy to have American interceptors stationed on
their soil to defend against presumed Iranian missiles. The truth is that the
interceptors will defend Western Europe but
not those hosting them. Worse, they will invite the Iranians to hit them first
and take them out before launching a follow-up volley toward Western
Europe .