Despite what the blurb implies, this is a low angst read focused more on sex than obstacles. Although mentioned in the blurb, I guess for dramatic effect, the story doesn’t actually deal much with any conflict their jobs, cultures or religions may cause. In the first book, they don’t get together until the end, and the second story picks up after their deployment together has ended, so Hugh really only has to do what he’s been doing for years in regards to his career (hiding his sexuality from his homophobic superiors) so that "obstacle" doesn’t really materialize. Moreover, any cultural/religious constraints don’t really exist since living in London means Rustam does not have to deal with his family knowing.
Even though the story isn’t nearly as complex as the blurb implies, I appreciated Hugh’s straightforwardness and honest communication, and this was an enjoyable, simple story about making a hidden affair into a real relationship