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| '''Tallarn 12th'''

Fought in the [[Cursus War]] in [[M40]]{{Fn|1}}

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|'''Tallarn 89th'''

Known to have taken part in the [[Annukani Campaign]] in [[M39]].{{Fn|1}} Also one of the infantry units assigned to the 4621st Imperial Army, X corps during the [[Taros Campaign]] 998.M41.{{Fn|3a}} The campaign ended in failure.{{Fn|3}} The regiment fought in the '''Aestus desert'''{{Fn|17}} and was completely destroyed during the retreat from Tarokeen. Scattered and captured by the Tau, the survivors of the regiment were condemned to work in the mines for the greater good. Those few survivors who made it to the evacuation ships were reassigned to the 331st Tallarn Desert Raiders Regiment, a green regiment which completed the campaign relatively unscathed.{{Fn|3}}

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| '''Tallarn 3rd Armoured (Desert Storm)''' {{Fn|2a}}

Named also '''"Tallarn 3rd Tank Regiment"'''{{Fn|13}}. A veteran Armoured unit Assigned to the 4621st Imperial Army X corps during the Taros Campaign 998.M41.{{Fn|3a}} The campaign ended in failure. The regiment was effectively destroyed having lost all of their combat vehicles and much of their equipment during the retreat. The Tallarn 3rd Armoured Regiment would be reconstituted in the aftermath with the survivors of the 3rd Tallarn Armoured and the 12th Tallarn Armoured Regiment.{{Fn|3}} During the defence of Balle Alpha, [[Chimeras]] of [[Gryphonne IV]] design with [[heavy bolters]] were used.{{Fn|2h}}

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|'''Tallarn 101st Armoured'''{{Fn|3}}

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|'''Tallarn 193rd Armoured'''{{Fn|3}}