Daniel Driscoll stops his work. He was a high boss for the army. He worked there for 1 and a half years.
People say there was a fight. The fight was in the Pentagon. The Pentagon is a big house for defense. Driscoll and Pete Hegseth had different ideas.
Driscoll is a friend of JD Vance. Vance is the vice boss of the USA. Driscoll also helped with talks between Russia and Ukraine.
Many bosses leave the Pentagon now. Randy George also left his job in April.
The White House thanks Driscoll. A woman says: He made the army strong. He did the work well.