And let's face it. Sure, the average guy is stronger, and taller, than the average woman. But 1) height and maximum strength are seldom an issue. Mental endurance and tenacity are almost always an issue. 2) Once upon a time, women weren't allowed to run further than 800m, because of their supposedly inferior physiques would be inclined to self injury. In 1984, the Olympics allowed women to compete in the marathon; it was controversial. Today, no one even thinks twice about it. 3) While the best women, will not beat the best men in a physical competition (running, sprinting, swimming, skiing, cycling, rowing, etc) they can and do beat well-trained men. Compare the winning women's result in any endurance race; there'll be a substantial number of male athletes behind : Tiki Gelana's 2:23:07 in the Olympic 2012 women's marathon would put her 64th in the men's race (of around 100 starting). In the Vasaloppet 90 km annual cross country skiing race in Sweden, the best woman is almost invariably 30 minutes behind the best man (usually the best guy has around 3:50). That's only 20 seconds slower per kilometre, and well ahead of a lot of men. For 2013 Laila Kveli came 137th place, of 16,000 starting humans, the majority of which were men. 4) While a degree of physical endurance and strength is desirable in the armed forces, as important at least is the attitude and mental tenacity to keep going when it gets tough. And don't tell me all guys have that attitude, because they don't. Standards should definitely not be lowered; but at least allow everyone the opportunity! No one voices any concern about weak-willed tv-addict Average Joe getting his chance to serve.