Should be noted that in most wars noncombat accidents take a large toll. In the 2nd Gulf war half the casualties reported were motor vehicle or combat vehicle accidents, and deaths such as heart attack. Was sad when the M1 tank rolled into a canal drowning the crew.
Going back to 1st Gulf war, we had more deaths in the coalition forces in training accidents in Desert Shield mode than in the actual Desert Storm / War timeframe. Just the cost of war I guess.
Back to the topic at hand - and to put it into perspective, back then during WWII, if you're flying and weather comes in, unless you know the area you're flying in memorized including high land points around your airfield, and your airfield had a controller with radar to guide you back in, you were screwed. A lot of planes ditched running out of fuel - and a lot didn't make it back flying into hills and mountains.
There was a great website I often visited about a guy in Europe who visits WWII aircraft crash sites in and around north-east Europe. Most of the crash sites he found were result of 'flying into hills' from bad weather, or ditching from getting lost. GPS was definitely not around and NAV beacons were not very common back then, especially in remote areas. If your compass or flight instruments got damaged from enemy fire and the weather was getting back or night-time, might as well bail out.
Just my two cents.