We have featured on more than one occasion military chaplains on this site, both past and present. Typically this has come within an American context; here, however, is another military chaplain and NLM reader, this time from the Hungarian Armed Forces, Fr. Ervin J. Alácsi (Capt.) -- whom I actually had the pleasure to meet in Budapest in 2008 at a conference organized by the late Laszlo Dobszay.
The photos come from this Sunday past, the Second Sunday of Advent. The usus antiquior is apparently alive and well, regularly celebrated for these military men.
The chapel itself that you see here is a common room that has been converted to chapel use recently.