Presently between them the United States and the Soviet Union have about 150 active satellites in orbit. In another three or four years there will be about 200. But the United States is in danger of being at the mercy of the Soviet Union in space because we are almost totally incapable of protecting our satellites from being damaged or destroyed by Soviet space weapons.
"A New Duel: Antisatellite Combat In Space,"
Naval War College Review: Vol. 35
, Article 6.
Available at: http://digital-commons.usnwc.edu/nwc-review/vol35/iss3/6