I do not have tickets yet. Turns out that my return date is too far in the future and the agent can’t place the order. I’m going to go down to the Yemen embassy on monday to see if I can fly in on a one way ticket. That would give me the most flexibility, I’d just buy another one way ticket when it was time to leave. I know that the US and the UK are not too keen on non residents coming in without a planned flight out. I’ll see if Yemen is the same.