Timing is the key. A good General reaches deep inside to find the mental will to prevail. Luck plays a part in any success. But also, they know to take full advantage when the risk pays off AND when it doesn't, they are ready to cut their losses quickly to minimise damage. A general can no more entertain fighting to the last man, than a good chess player would play an obviously lost game.
All battles involve some risk.
If you are not prepared to take it, you won't win. Finally, if the battleground appears peaceful at present, be extra vigilant because there could be an even more dangerous enemy attacking from within. It is called complacency and it eats away at the foundations of your business until suddenly, a company that once appeared invulnerable, is wide open for attack.