Representative Patrick Ryan questioned Hegseth regarding an Iranian drone attack that killed six US Army Reserve soldiers at a Kuwaiti base in early March, amidst discussions about the security of the facility.

Kevin Dietsch/Getty; ANDREW CABALLERO-REYNOLDS/Getty; Michael M. Santiago/Getty; Tyler Le/BI Last July, four high-ranking tech executives — all of them involved with artificial intelligence — were sworn into the US Army Reserves with the rank of lieutenant colonel. They were part of a new unit called Detachment 201, also known as the Executive Innovation Corps. The Pentagon has introduced many initiatives to deepen relationships with Silicon Valley. But making officers out of multimillionair...