Have the pentagon absolve California military personal from paying back enlistment bonus' when they were called to serve

Our military men and women were asked to re-enlist to fight for our country and were given a bonus to do so, now the pentagon is demanding they pay it back because someone over paid them. That is immoral and unethical. https://www.google.com/amp/www.latimes.com/nation/la-na-national-guard-b...