Complex sentence: The unshakable loyalty was made part of the SS' honour, as the motto "Meine Ehre heißt Treue" ("My honor is called loyalty"), which was placed on the Waffen SS belt buckle, until they were disbanded after the war.
Split into simpler sentences: The unshakable loyalty was made part of the SS' honour, as the motto "Meine Ehre heißt Treue" ("My honor is called loyalty"). Which was placed on the Waffen SS belt buckle until they were disbanded after the war.