In that program, the Missile Defense Agency spent billions of dollars and over a decade to get a laser - rigged jumbo jet to destroy a ballistic missile in
its boost phase of flight.
Not exact matches
One thing the U.S. doesn't appear to be working on now — which is a bit
of a mystery to me — is so - called
boost -
phase missile defense, which attempts to hit the missile while it's still burning early in
flight.
Lamb and his colleagues calculated that hitting an intercontinental ballistic missile during its
boost phase requires defensive weapons within 250 to 600 miles
of the
flight path.