My company is thinking about opening a new office in the UK and because of this, I'm thinking about how my domain hierarchy is going to change. Our HQ is located in the states and I am concerned about how to go about setting up a domain controller for this office in the UK.
What are some of the obstacles I'm going to have to look out for because of the distance between domain controllers?
I'm thinking about creating a new sub-domain that has a two-way transitive trust between the two. That way if we have other remote offices appear in the future we can add another sub-domain off the forest root and configure the same way as the first allowing the two sub-domains to have trust each other as well.