Answer:
Texas became an independent nation
Explanation: Texas gained its independence from Mexico and founded the Republic of Texas, lasting from 1836 to 1845.
Your answer's are 2, 4, and 5. This is something it is important to study, but i do hope i helped.
The success of the civil rights movement
The Blitzkrieg tactic, which was the usage of overwhelming air power allowed the Germans to acquire territory quickly and intimidate their enemies. The use of the lighting war on Great Britain, for instance, was ultimately unsuccessful.