Technically it's true, but definitely misleading
Joni Ernst says she earned the right to call herself a ‘combat veteran’ despite never seeing combat:
The report pointed out that Ernst frequently reminded voters and now constituents of her combat veteran status, and she has not corrected others when they suggest she led troops into battle.
“I am very proud of my service and by law I am defined as a combat veteran,” Ernst said. “I have never once claimed that I have a Combat Action Badge. I have never claimed that I have a Purple Heart. What I have claimed is that I have served in a combat zone.”