What is the meaning of c'est la gere?

It is not "c'est le gere", but "c'est la guerre"; and it means: "that's the war", or "that's war for you, I'm afraid". A related saying is "c'est la vie" or "that's life".
"C'est la guerre" was originally used as an excuse for, or a resigned acceptance of, the effects of war on people and their behaviour. Nowadays (in peacetime) it is used as a comment on the tribulations of life.




In addition, it means that the chase won't be given up, more on the vein of everyday use.