SAR is good, also the usual beam-directed radar. SWIR will be blocked by clouds (water absorption spectrum). Current laser weapons operate near 1 micron, and we never considered them anything other than clear-weather weapons. SWIR is also blocked by smoke. As for confocal diffuse tomography, it may work in the laboratory, but a battlefield is not forgiving. What would be the basis for thinking it has been "a military technology for at least 20 years"?
SAR is good, also the usual beam-directed radar. SWIR will be blocked by clouds (water absorption spectrum). Current laser weapons operate near 1 micron, and we never considered them anything other than clear-weather weapons. SWIR is also blocked by smoke. As for confocal diffuse tomography, it may work in the laboratory, but a battlefield is not forgiving. What would be the basis for thinking it has been "a military technology for at least 20 years"?