"How many airmen make enough to pay 6 figures in taxes?"
From article:
"Germany is the only country where U.S. forces face these financial risks, which also can involve finance offices imposing extra penalties for access to on-base "privileges" such as commissary shopping, cheaper gas, gym use and access to Defense Department schools for their children."
More info:
German Tax Collectors Continue to Target US Airman After He Returns to America "The relatively small fine represents an opening move. The Kusel-Landstuhl office, which is responsible for much of the area surrounding Ramstein Air Base, has imposed tax penalties as high as $300,000 after military pay and benefits like housing allowances, base discounts on gas, commissary privileges and access to free Defense Department schools get factored in."
Germany is going after people who have German spouses.