If you click on the picture, you will see Logan Charles on the right with an arrow pointing towards him. This group of pilots had no idea they would be in WW2. The war had not been declared yet.
The WWII Night Fighters were a different breed of men. The Pilots, Radar Observers and Tail Gunners were all volunteers. They had special technical training as did the ground personnel. Prior to the establishment of the Night Fightes, our combat troops and installations, in the combat zones, were nightly targets for strafing and bombing by the enemy. When the Night Fighters became operational, these problems basically stopped, thus saving the lives of untold numbers of our troops and much needed equipment and supplies.