Baran 's distributed adaptive message block switching is communication networks that can survive nuclear wars .
Baran developed the concept of distributed adaptive message block switching during his research at the RAND Corporation for the US Air Force into communications networks , that could survive nuclear wars , first presented to the Air Force in the summer of 1961 as briefing B-265 , later published as RAND report P-2626 in 1962 , and finally in report RM 3420 in 1964.On Distributed Communications Report P-2626 described a general architecture for a large-scale , distributed , survivable communications network .
Packet switching