The Obama administration is considering what sort of military action
to take, if any, against the government of Syrian President Bashar al
Assad, which stands accused of using chemical weapons against its own people. The most likely option: a cruise missile strike against assorted military and government sites
, like the presidential palace and chemical munitions facilities. Here's a primer on cruise missiles.
What are cruise missiles?
Cruise missiles are fast-moving, guided bombs that soar at a very low
trajectory, parallel to the ground. They are distinct from regular
(non-cruise) missiles primarily because they go really far. They are
also distinct from drones, because they do not have on-the-ground
pilots--instead, they fly a pre-set path--and you can only use them
once. Germany used the first cruise missile in World War II. Called
V-1s, after
Vergeltung, the <="" a="">German word for retribution, they were fired from sites in northern france
and aimed at London. The idea behind the V-1, which is the core idea
behind all cruise missiles since, is to attack from far away without
needing a pilot to control it.
How do cruise missiles work?
All cruise missiles have an internal guidance system, though the types vary. The Tomahawk cruise missile,
which the U.S. Navy has deployed since 1984, uses a system called
"Terrain Contour Matching," where an altimeter and an inertia detector
plot the flight path against a pre-loaded terrain contour map. Later
versions of the Tomahawk also use GPS, and there are other guidance
systems that some cruise missiles use.
Cruise missiles all have basically the same parts:
an engine, often a jet with an air intake, propels the missile through
the air. There's a spot for fuel, and a spot for the warhead, or
explosive carried inside. Both cruise missiles pictured below were
designed to carry nuclear warheads, but most cruise missiles, and all
that have actually been used in war, carry conventional, non-nuclear
explosives. The front end of a cruise missile usually has a guidance
system. Cruise missiles, with wings and engines, often resemble
pilot-less planes.
Cruise missiles can be launched by airplanes, submarines, ships, or
from launching vehicles on land. Besides the United States, more than 70 nations have cruise missiles.
Has the United States used cruise missiles before?
Oh, yeah. If the
drone
is the signature weapon of the 2000s and 2010s, cruise missiles were
the go-to in the 1990s. Deadly, launched from far away, and without a
pilot on board, they promised to destroy enemies without risking
American casualties. Here are three American cruise missile strikes from
the 1990s:
In 1993, Kuwaiti authorities foiled a plot by Iraqi Intelligence services to assassinate former President George H.W. Bush. In retaliation, President Bill Clinton ordered the firing of 23 cruise missiles at Iraqi intelligence headquarters. In 1998, President Bill Clinton ordered a cruise missile strike against the El Shifa Pharmaceutical Industries plant in Sudan, under the assumption that it was a chemical weapons plant. Also in 1998, Clinton ordered troops to fire cruise missiles
at Osama bin Laden in the Khost province of Afghanistan. Both of these
1998 attempts were retaliation for the bombing of U.S. embassies in East
Africa.
What were the consequences?
Following the 1993 strike, Iraq and the United States existed in a
state of simmering hostility for the next decade. America (together with
the United Kingdom and, for some of the time, France) imposed a "no-fly-zone"
over the country, to prevent Iraqi's government from attacking Kurds in
the north and Shi'ites in the south. The no-fly-zone was deeply
problematic: Iraqi anti-air missiles occasionally fired at American
aircraft overhead, and Americans bombed Iraqi anti-air missile sites in
return. It only ended with the overthrow of Saddam Hussein following the
2003 invasion of Iraq. Tensions and violence in Iraq persist to this day.
The El Shifa Pharmaceutical Industries destroyed by the United States
in 1998 was in fact actually just a pharmaceutical plant. The ruins
were left untouched and now serve as a shrine to American incompetence.
The cruise missile strike in Khost failed to kill Osama bin Laden; a
mission that would take 13 more years, a ground invasion of Afghanistan,
a decade-long man-hunt, and a special kill team of Navy SEALS to
complete. From the 2000 report,
there is also evidence that "the strikes not only failed to hurt Osama
bin Laden but ultimately may have brought al-Qaeda and the Taliban
closer politically and ideologically."
What are cruise missiles' limitations?
A 2000 report
by the U.S. Air Force on Tomahawk cruise missiles notes several limitations:
Although the consensus is that
Tomahawks are a highly successful weapon, these weapons have several
limitations. One of these is that their flight paths are relatively
predictable, which is a function of the fact that some terrain, notably
deserts, provides relatively few features for terrain following
guidance. A second problem is that mission planning for terrain
following guidance systems is more time consuming and complicated in
terms of intelligence requirements than one might expect. For example,
to use Tomahawks a unit would have to request a targeting package from
such agencies as the Defense Mapping Agency to gather the data necessary
for a mission. A third limitation was that Tomahawks could not be used
against hardened targets because the 1,000 pound warhead, the weapon's
accuracy, and its final kinetic energy when it hits the target do not
produce high probabilities of kill. The final limitation was that
Tomahawk cruise missiles cannot attack moving targets because they are
guided to a position rather than to a specific target. Similarly, a
Tomahawk cruise missile could not attack relocatable, that is mobile,
targets because these may move while the mission is being planned or
during the flight of the cruise missile.
Since then, cruise missile guidance systems have improved
,
but the overall limitations of the weapon system remain. The weapon
requires good intelligence and good maps to hit the target. It also
needs the enemy to stay in one, relatively vulnerable place.
Will the U.S. use cruise missiles in Syria?
It's not entirely clear. More certain is that idea that drones won't
be used. Drones are great at tracking individuals from safe skies. But
Syria's government has anti-aircraft weapons, which can easily shoot
down drones. Cruise missiles, instead, fly faster, hit harder, and
instead of hunting individuals take aim at big, fixed targets like
military bases or palaces. Also, the United States has a lot of cruise
missiles near Syria, and very few available drones.
Several publications, including the New York Times, Los Angeles Times, and the Wall Street Journal expect the U.S. to use cruise missiles if the Obama administration does order strikes. Anonymous senior U.S. officials told NBC
that a three-day cruise missile barrage against the Assad regime is
possible. Of course, there's no guarantee that strikes will happen at
all. Yesterday, President Obama said he had not made a decision on whether to intervene in Syria.
Launching cruise missiles feels like a strong military action for a president to take, but it's very unlikely to be a
decisive one.