Complex sentence: In 1958, the number was dropped, and the regiment became The Sherbrooke Regiment (RCAC), before, in 1965, it amalgamated with the 7th/XI Hussars to become The Sherbrooke Hussars.
Split into simpler sentences: In 1958, the number was dropped, and the regiment became The Sherbrooke Regiment (RCAC). In 1965, it amalgamated with the 7th/XI Hussars to become The Sherbrooke Hussars.