How did U-Boats change traditional navel warfare practices?

They were able to avoid ships attacking them and sneak past enemy ships while also being able to sneak up on ships to attack them.

Explanation:

I don't know how to explain it, its history.

tenochtitlan (also spelled tenochtitlán), located on an island near the western shore of lake texcoco in central mexico, was the capital city and religious centre of the aztec civilization. the traditional founding date of the city was 1345 ce and it remained the most important aztec centre until its destruction at the hands of the conquering spanish led by hernán cortés in 1521 ce, which led to the final collapse of the aztec empire.

civil disobedience, refusal to obey the demands or commands of a government or occupying power, without resorting to violence or active measures of opposition