[aerohead]

*Yes,The US Army snipers of WW-II had infrared sights.
*Most military research between 1945 and 1960 had to do with the greenhouse effect,in the development of missile guidance systems,pyrotechnic countermeasures,Special-ops night operation capabilities,etc..
*In 1946,the military's,University of Pennsylvania,ENIAC super-computer's 3rd-tier task,was weather modeling,based on John von Neumann's mathematics,which evolved into to today's climate models.
*Roger Ravelle (Charles David Keeling's boss) helped found the Office of Naval Research,which underwrote most all greenhouse research.
*Roger Ravelle was involved in the Bikini Atoll,atmospheric nuclear testing,which gave him the idea about carbon-dioxide absorption into the oceans,and retention of CO2 in the atmosphere,after his research into ocean uptake of nuclear fallout(or not) after the Mike shot that went horribly wrong.(the third atomic bombing of the Japanese)
*In the Korean War,US fighter jets were knocking Mig-19s out of the air with infrared-sensing products developed via the Office of Naval Research.
*In 1954,the US Navy/US Air Force,Joint Numerical Weather Prediction Unit was established at Suitland,Maryland,pushing the envelope of numerical simulations.
*The CIA,NSA,NRO, and Pentagon have programs which remain classified.