The 1st & 16th Light Brigades, both Aritan units, have both been taken off the front line on Delta 9 and will be lifted off the planet within days (now that the DDS have a foothold in orbit), they have been replaced by the 7th & 8th Light Brigades which are both Windy Massive units.
The DDS have said that the unit rotation is normal procedure though the 16th has only been on the front line for 3 weeks. It is thought the DDS are trying to get all Aritan units out of combat situations before an expected request by the Aritans to leave the DDS. The Aritans however have said they will not sabotage the war effort if they do join the DTA. An Aritan spokesman said that Aritan troops would not let their comrades down even if they became ex-comrades.