If this is your qualification for the best fighting force then the Tuareg or Sahrawi tribes in the Sahara region would be the best soldiers in the world. No other people can beat them in water intake minimization. But are these people known for being very able soldiers? I don't think so.
Better not mix up Survival skills with fighting skills..
Yes, Indian Army is one of the best, US regulars Marine and Army grunts are good in survival but not the best..
Regarding Fighting, Our Soldiers are again better in CT operations:
1 without heavy weapons and Air-power
2 good in handling Civillains..
Also we are fighting Fanatical Islamic since 1948, US and other just join the game..
Also not to forget we train them in our training centers..
An regarding Sahara Tribes, No doubt they beat all other in desert in terms of survival....
American Forces heavily Rely on mass firepower and Technology..
Except the Chinese forces? As shown in the 1962 war... These Chinese must be more adept at fighting with less water? What do you think?
They are Asians like us, And they are tough, But u saying 30 men against 400 down hill, Its a loss..
Their was nothing wrong with the Army fighting skills or Survival skill even tactics, The loss is coz of wrong moves played by top brass.