That would depend on where you want to teach. Although I don't have a CELTA, I know of people in Thailand who are teaching EFL with a CELTA or TEFL but they don't have a BA. A lot of these people are teaching out in the provinces away from Bangkok.
According to the law, you must have a BA or BS to teach, but in fact this law is relaxed many places, especially out in the provinces where a lot of teachers are needed. I also know of other people who are teaching in Taiwan without a degree.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.