1. A weapon-sight system for use with a weapon for performing wireless acquisition of a target, comprising: a weapon sight that is mountable onto the weapon and that is adapted to capture a thermal weapon-sight image of the target, the weapon sight having a wireless transmitter to generate a first wireless signal representative of the weapon-sight image of the target; a display system that is not physically connected to either the weapon sight or the weapon, wherein the display system includes: a) a night-vision optical system and thermal sensor adapted to capture a display-sight image of the target and generate a second electrical signal representative of the display-system image of the target; b) a wireless receiver adapted to receive the first wireless signal and generate a first electrical signal; c) a display; d) a processor that receives and processes the first and second electrical signals and causes the display to display either: a) at least a portion of the weapon-sight image, or b) a combination of at least a portion of the weapon-sight image and at least a portion of the display-system image; and e) wherein the weapon sight further includes a first inertial measurement unit that generates weapon-sight inertial data, the display system further includes a second inertial measurement unit that generates display-system inertial data, and wherein the processor is configured to receive and process the weapon-sight inertial data and the display-system inertial data to align the weapon-sight image relative to the display-system image.