Art you are giving short shrift to the brave Yugoslavian resistence fighters of every political persuasion. They liberated their country, without allied ground forces, albeit they did recieve both US and British material assistance.
The Yugoslavians did very well, but their liberation of their country, as noble and brave as it was, has to be placed in context of the wider situation. With Russians rapidly approaching from the east, and US, and other allied forces, threatening to come around the Aegean Sea from Italy the German army was threaten with being trapped against the sea. As brave and effective as the Yugoslavian fighters were their efforts were effective because the strategic situation demanded the Germans flee the area.
Of the many case studies in WW2 two that I find fascinating are the story of the US Merchant Marine and the 8th Air Force.
The stout spines of the British leadership were steeled by knowing that the US would get supplies to them. The US was the lifeline for England. The effect has been seen British humor and computer terminology. One British wag noted that 'he liked SPAM but wished the Americans hadn't sent to much of it'. By the end of the war England had seen more than its fair share of SPAM. Thus the Monty Python sketch with the chanting Vikings, by way of which we got the popular term for repetitious and annoying e-mail and forum postings.
England lived or died by our ability to get supplies to them. The nation couldn't feed itself and it has few mineral and no petroleum resources. The job of keeping England in food and oil fell to the Merchant Marine. Interesting fact: The merchant marine had more casualties by percentage than any other branch.
http://www.usmm.org/casualty.htmlThe Marines were tough but they were on land and armed to the teeth. The Mariners were in unarmored, largely unarmed, ships that chugged along at about 11mph. If you had to abandon ship and didn't make it into a lifeboat you were done for. Typical convoy orders were that no ship was to stop to rescue survivors.
Ammunition ships tended to explode leaving nothing but smoke and a slick. Tankers caught fire and surrounded themselves with rings of burning fuel. The transports were cheaply built and poorly compartmentalized so hulls cracked, broke up and sank rapidly.
Took a special sort of bravery to sign up time after time to go out on a transport knowing they were gunning for you and there wasn't much you could do about it. A lot of what what we learned about survival at sea came from Merchant Marine crews.
It has to be noted that while they took more casualties as a percentage than any other branch the Merchant Mariners were considered civilians and looked down upon by most people. The navy got the credit. They just earned a paycheck. They also, until recently, got no service benefits. Things were not all goodness and light for everyone. Injustice knows no special time.
Flight crews in the 8th Airforce were also a special case. One historian claims, if I have it right, that your chances as a pilot in a Japanese kamikaze squadron were better than as a flight crewman in the 8th. The Brits gave up on daylight bombing. We regularly flew 2000 bomber missions and losses of about 5% were common. Five percent doesn't sound bad, until you figure that you have to do it again every few days for the duration of the war. The only alternative was getting maimed, or dead.
Crews despaired, considered themselves dead, cracked, went nuts ... and then most of them climbed back into their patched bombers and went out on another mission knowing full well that another five percent wouldn't make it back. That's a special type of brave.
I'm not sure how this ties into survival other than to remind us that no matter how bad it gets there have been people who had it worse, and made it through.