Why didn't they see the end of their civilization?
The Maya actually saw the "end" of their civilization. The Maya
still are a large community, about 40 million people. This is only
a small change, since there are millions more in Los Angeles.
However, if you are referring to the Spanish conquest, there wasn't
one. There was only one battle, then the Maya prevailed. The
Spanish all gathered around Cortez trying to kill Tecum umam, but
he gave his life so that the Spanish would be killed from behind by
his warriors.