h ilation . ▁ ▁By ▁the ▁ 2 2 nd ▁century , ▁the ▁V ul can ▁High ▁Command ▁is ▁a ▁form ▁of ▁military ▁government ▁that ▁controls ▁both ▁the ▁V ul can ▁space ▁fleet ▁and ▁most ▁of ▁the ▁planet ▁itself . ▁Most ▁V ul c ans , ▁including ▁T ' Pol , ▁from ▁Star ▁Tre k : ▁Enter prise ▁obey ▁the ▁High ▁Command . ▁It ▁is ▁dissol ved ▁in ▁the ▁early ▁fourth ▁season ▁of ▁Star ▁Tre k : ▁Enter prise . ▁ ▁In ▁ 2 1 5 1 , ▁Sub - Comm ander ▁T ' Pol ▁joined ▁the ▁crew ▁of ▁the ▁Earth ▁Star f le et ▁vessel ▁Enter prise ▁( N X - 0 1 ), ▁within ▁a ▁couple ▁of ▁weeks ▁setting ▁a ▁V ul can ▁end urance ▁record ▁for ▁serving ▁ab o ard ▁a ▁human ▁vessel . ▁In ▁ 2 1 5 4 , ▁T ' Pol ▁became ▁a ▁commission ed ▁officer ▁with ▁Star f le et . ▁ ▁Through out ▁the ▁period ▁of ▁Star ▁Tre k : ▁Enter prise , ▁the ▁High ▁Command ' s ▁actions ▁were ▁the ▁them es ▁of ▁several ▁episodes . ▁V ul can ▁star ships ▁were ▁sent ▁to ▁sp y ▁on ▁the ▁Enter prise ▁and ▁report ▁on ▁the ▁ship ' s ▁activities . ▁They ▁appeared ▁to ▁particip ate ▁in ▁open ▁acts ▁of ▁per sec ution ▁towards ▁other ▁V ul c ans , ▁such ▁as ▁isol ating ▁and ▁quar ant ining ▁vict ims ▁of ▁Pa ' nar ▁Sy nd rome ▁rather ▁than ▁tre ating ▁them ; ▁pre jud icial