Richard Allen (1760-1831) was a religious minister, educator and write and one of the most important black leaders in America. He was born as a slave, but in 1786 he was already able to purchase his freedom.
In 1816, he founded the African Methodist Episcopal Church (AME), as the first independent place where free blacks could worship without suffering racial oppresion or discrimination, and also slaves could join and preserve their dignity using the cult. He aimed to upgrade the social status of the black community. He taught literacy, and he pushed political powers to develop national strategies.
Terrorists go after civilians, wear no thing as a uniform and they try to blend in with the population in hopes of not getting caught. There are no standards that can dictate how they will act, and or what their goal is. They murder women, children, and anyone they please.
However, Conventional warfare, is a set of battles army vs. army. Take World War II as an example. Germany and its allies got their militaries together and fought against their allies. It is a military on military conflict. Both sides wear the uniform and only fight against those who wear the uniform in hopes of defeating the other force that withstands military might.