It means that bad times are temporary. Take 9/11 for example. This was a dark time for the U.S. we felt vulnerable and defeated in a sense. Ever since that catastrophe, the security in the airports has really buckled down in an effort to prevent this from happening again. Because it hasn't, it is valid to say that these efforts have been successful.
It means to defeat that person or group. The side with the victory is the winner.
To snatch victory from the jaws of defeat means to win a surprising victory at the last moment possible, when it had previously seemed certain that you were going to lose. This has in recent times also coined the reverse phrase to snatch defeat from the jaws of victory meaning to lose at the last moment possible, when it had previously seemed certain that you were going to win.
The quote suggests that achieving a victory is not worth the high cost or sacrifice that would be required to attain it. It reflects the idea that the consequences or sacrifices involved may outweigh the benefits of winning.
He would use all the resources at the country's disposal in order to defeat the enemy, one of these resources being people.
A Pyrrhic victory is a victory with such a devastating cost that it carries the implication that another such victory will ultimately lead to defeat. Someone who wins a Pyrrhic victory has been victorious in some way; however, the heavy toll negates any sense of achievement or profit.
"To win a victory over (someone)" in the normal sense means to defeat, vanquish, beat, or triumph. e.g. "Brazil won a victory over Australia in the FIFA World Cup." Metaphorically, it can mean to succeed in spite of adversity or opposition. e.g. "He won a victory over cancer, and has been in remission for several years."
If the Western Allies did not successfully land, the Russians (Soviets) would have taken over Germany.
This phrase means to achieve success or victory in a situation where it seemed likely that failure was imminent. It implies turning a certain loss into a surprising win through skill, determination, or luck.
The darkest yellow in urine means many antibodies and antigens have been killed.
the darkest black
It means what you say often becomes how you think. If you talk about defeat you will begin to accept you will be defeated. Whereas if you talk about winning you're more likely to believe you will win and that makes you more likely to succeed at whatever you want to do.
This phrase implies that after facing difficult times, there is hope for better times ahead. It suggests that even after experiencing the lowest point, there is a chance for things to improve and for a new beginning to emerge.