Hotel Moscow is the Thailand branch of the Russian Mafia led by Balalaika, and it's primarily compromised of her military subordinates from the former Soviet Union.
Hotel Moscow is a group from the Black Lagoon that was created by Rei Hiroe. The series first began serialization in Shogakukan's Sunday GX magazine on April 19, 2002. The team appearance was inBlack Lagoon Volume 1 CH. 0 "Black Lagoon", and her first anime appearance was in Black Lagoon - Episode 1 "The Black Lagoon".