The Buzz

'Star Wars' Missile Defense Is Back—but Will It Work?

Space-based missile tracking sensors, high-energy particle beams that zap nuclear warheads and President Donald Trump’s call for a new “Space Force” branch of the US military.

For those who remember President Ronald Reagan’s Strategic Defense Initiative (SDI) of almost four decades ago, it sounds like déjà vu all over again. Reagan pitched building an ambitious anti-missile system in 1983 dubbed “Star Wars.” The R&D effort, which included space-based lasers, was sidetracked by funding shortfalls and the collapse of the Soviet Union. But it appears to have gained a new lease on life.

A conga line of generals and officials told Congress in late March that the US lags in defending itself against game-changing weapons such as Russian and Chinese hypersonic missiles. The testimony, aimed at securing more military R&D funding, follows a March 1 speech by Vladimir Putin in which the Russian president unveiled new ballistic and hypersonic cruise missiles that supposedly evade US anti-missile shields.

“No anti-missile system – even in the future – has a hope of getting in its way,” Putin said of a new intercontinental ballistic missile (ICBM) codenamed Sarmat that has maneuverable re-entry vehicles or MARV warheads.

Return of the Jedi

The alarm bells raised by Putin’s claims are pushing Washington to resurrect some of the space-based missile shields championed by Reagan. But several analysts, including Angelo Codevilla, one of the original architects of Reagan’s SDI, caution that nearly all the wonder weapons touted three decades ago never reached the experimental stage due to inadequate funding and political commitment from US officials. Most must be developed from scratch.

Codevilla says an example is a nuclear-pumped X-ray laser proposed for Stars Wars by US atomic scientist Edward Teller. “Not only did it not get to first base, it never made it out of the dugout,” he told Asia Times.

Based on current technology, Codevilla says the US also has little defense against low-flying hypersonic cruise missiles fired by Russia or China.

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Others note new vulnerabilities for any revamped Star Wars system. These include cyber links that can be hacked and anti-satellite weapons that can “blind” US missile shields. There also are nagging worries about the reliability of such anti-missile defenses, their huge costs and the destabilizing impact they’ll likely have on existing arms control pacts.

“It’s a good way to spend a lot of money with not much to show for it,” John E. Pike, a military intelligence analyst who runs website, told Asia Times. “Large-scale missile defense against a determined peer adversary like Russia or China still poses the arms race and crisis instability problems that are inherent in such technology.”

A recent report from Chatham House, a London-based think tank, noted that new technology in the form of chips and other digital components has created “new threat vectors” for US missile defenses and nuke weapons systems. The dangers include the use of foreign-made digital components in such systems that makes them liable to cyber infiltration.

Russia and China can also be expected to wield anti-satellite weapons to bring down new Star Wars defenses. And some doubt if current US anti-missile technology, which requires “hitting a bullet with a bullet,” will work against hundreds or thousands of incoming warheads.

Space-based lasers