Why did operation sea lion fail?

Well most of the historians already agreed that the, "Sea Lion", would have failed anyway because of the weakened German Sea Power. Which was also compared to the, "Royal Navy".

Explanation:

is there options? or is it random words?

explanation:

yes based on alexanders actions he deserved the title of "the great". his empire covered about 3,000 miles and he was able to establish the empire over a 13 year period of time. he was able to conquer many different places. he also defeated the persians. he conquered egypt and developed a city and named it after himself.