On a Floating Bridge

I must have fallen asleep fairly early because I woke up to find we’d landed in Warsaw and it was around midnight (note: buy watch in St. P) I drifted off again to then be awoken by a knock on my door (and everyone else’s) and the Providnik saying something in Russian. I got my passport out and he handed me a customs form. I filled out the questions and waited until some army official came past and checked my passport. The man who did mine looked at it and said very slowly in a slightly mocking, slightly suspicious voice “Yu-nai-tted Kingg-dom” I smiled meekly and he went away.
After a few minutes the train started moving again and I went back to sleep, thinking that was it. 15 minutes or so later, we stopped again. Another knock. Another army official. I hadn’t twigged at this point, that the first guy was checking me out of Poland with disinterest, this guy was the much more thorough Belarussian official. I gave him my passport from my position, sat up in bed which upset him. “Stand up, Stand up” he compelled me in Russian. The providnik opened my bed storage as if to say she’s not hiding any Chechen terrorists, its fine.
My passport was taken away and came back stamped half an hour later.
I slept in til gone 10:30 local time and woke feeling more anxious about the food situation than before.