Tanks were modified to the new Regimental march "Red and yellow and pink and green. Orange and purple and blue. I can sing a rainbow. Sing a rainbow, sing a rainbow too . . . "
Or...
A young Cavalry Lt turns to his experienced Sjt "Crikey Sarge, how many Apaches did we have to scrap to get this wonderful new reactive armour?!". The SNCO looks down and mutters under his breath...