I'm puzzled by the question as the Black Watch has always been an infantry regiment and Hussars are cavalry.
Northumberland Hussars was created in 1794.
Royal Hussars was created in 1969.
Sherbrooke Hussars was created in 1866.
Guard Hussars was created in 2001.
Royal Hussars ended in 1992.
Sherbrooke Hussars's motto is 'In This Sign, Stability'.
King's Royal Hussars was created in 1992.
Royal Gloucestershire Hussars was created in 1795.
Queen's Royal Hussars was created in 1993.
Queen's Own Hussars was created in 1958.
The motto of Sherbrooke Hussars is 'In Hoc Signo Stabilitas Latin,'.
The duration of Hooray for the Blue Hussars is 1.67 hours.