-
K1,
K2 etc. = The sequence in which volunteer Battalions, were raised;
K1 indicating the first batch of 'Kitchener Volunteers', K2
the second and so on
-
Regular
= full time, professional battalions which were maintained even
in peace time
-
Reserve
= non-combat units based in the UK for training new recruits
to draft to the fighting battalions
-
S
= Service Battalion, the formal title of battalions raised from
volunteers