Pakistan has tested a ballistic missile with a multiple independently targetable reentry vehicle (MIRV), the United States confirmed this week.
During testimony to Congress outlining worldwide threats on March 6, Robert Ashley, the director of the Defense Intelligence Agency (DIA), stated: “In January 2017, Pakistan conducted the first test launch of its nuclear-capable Ababeel ballistic missile, demonstrating South Asia’s first MIRV payload.” It appeared to be the first time a U.S. official publicly confirmed that Islamabad tested a MIRVed missile; however, in a report last year on missile threats around the world, the Defense Intelligence Ballistic Missile Analysis Committee noted, “In January 2017, [Pakistan] began testing the MIRVed Ababeel MRBM.”
MIRVs allow a single missile to deliver multiple warheads against different targets.
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The Pakistani military first announced its test of the MIRVed missile on January 24, 2017. “Pakistan has conducted its first successful flight test of Surface to Surface Ballistic Missile Ababeel, which has a maximum range of 2,200 kilometers,” the military announced in a press release at the time. “The missile is capable of delivering multiple warheads, using Multiple Independent Re-entry Vehicle (MIRV) technology.” The statement added that the test was aimed at “validating various design and technical parameters.” No other tests of the Ababeel missiles are known to have taken place since the first one.
Despite these claims, many outside experts questioned whether Pakistan really had developed or tested a MIRV. As the Center for Strategic and International Studies’ Missile Defense Project noted, “Some experts have expressed skepticism as to whether Pakistan has indeed surmounted the various technological hurdles required for MIRVed missiles. MIRV warheads are typically much smaller than unitary warheads, and thus require greater miniaturization. It is unclear if the country has manufactured a miniaturized nuclear warhead small enough to use in a MIRV.” Ashley’s confirmation should put this skepticism to rest.
Development of the Ababeel missile is believed to have begun in the mid-to-late 2000s, and the missile’s design is similar to other Pakistani solid-fuel medium-range ballistic missiles, such as the Shaheen II and Shaheen III, according to CSIS’s Missile Defense Project. Unlike those missiles— which both have two stages— the Ababeel is a three stage missile. The BBC reported back in 2010 that Pakistani missile designers were receiving substantial assistance from China in developing MIRV technology. The Ababeel appears to have a large nose cone, which may allow it to carry multiple warheads even if they are slightly larger than normal MIRVed warheads.
Islamabad’s stated rationale for pursuing MIRV technology is to defeat India’s ballistic-missile defense systems. “Development of Ababeel Weapon System is aimed at ensuring survivability of Pakistan’s ballistic missiles in the growing regional Ballistic Missile Defence (BMD) environment,” the Pakistani military said in the statement announcing the test last January. “This will further reinforce deterrence.”
MIRVs are undoubtedly useful for defeating missile defenses, as they present numerous targets in close range that interceptors must locate and destroy. At the same time, MIRVs are extremely valuable for counterforce attacks—that is, trying to destroy an adversary’s nuclear arsenal in a surprise first strike. In that sense, they are extremely destabilizing for strategic stability; during the Cold War MIRVs greatly exacerbated the nuclear arms race between the two superpowers.
Source : http://nationalinterest.org/blog/the-buzz/pakistan-has-just-tested-the-ultimate-nuclear-missile-24834