000			00790cam a2200169 4500
020			_a0700609423 (hbk.): _c35.00 US
100		1	_aRICHELSON Jeffrey T
245		0	_aAmerica's space sentinels: _bDSP satellites and national security
260			_aLawrence, Kan. USA: _bUniv. Press of Kansas, _c1999
300			_a329p.
440			_aModern war studies
520		3	_aDetailed history of the development and applications of the U.S. satellite based early warning system. The system was originally intended to warn of ballistic missile launches by the USSR (and thus act as a deterrent to nuclear war), but has subsequently been used for many other purposes.
650			_aEARLY WARNING SYSTEMS
650			_aSATELLITE RECONNAISSANCE
650			_aSPACE SURVEILLANCE
945			_i0009822 _rY _sY
999			_c45145 _d45145