INB4 "no Lees in Africa", 2nd Battallion, 13th Armoured Regiment, 1st Armoured Division fought with Lees from start of the Torch campaign (other tank battallions in 1st AD converted to Sherman before deploying to front line). Even the 2/13th had halfway converted to Shermans when Kasserine hit the fan. Afterwards, there were not enough Shermans on theatre or on the way to cover the losses, so they were replenished with Lees instead - 2/13th and 3/13th in practice "downgrading" to Lees, plus other battallions also getting some. Plus then there was the 751st Tank Battallion, attached to the 34th ID (which only saw limited action from April 43 onwards).