Green card holder Sae Joon Park left for South Korea after saying he was being targeted by Trump administration

A US army veteran who lived in the country for nearly 50 years – and earned a prestigious military citation for being wounded in combat – has left for South Korea after he says past struggles with drug addiction left him targeted by the Trump administration’s immigration crackdown.

“I can’t believe this is happening in America,” Sae Joon Park, who held legal permanent residency, told National Public Radio in an interview before his departure Monday from Hawaii. “That blows me away – like [it is] a country that I fought for.”

Park’s remarks to NPR and the Hawaii news station KITV vividly illustrate the effects that Donald Trump’s immigration policies can have on those who came to the US from abroad and obtained so-called green cards. His experience also highlights the challenges that noncitizens can face if they are ensnared by legal problems after serving the US military.

As the 55-year-old Park put it, he was brought to the US from South Korea at age seven and enlisted in the army after high school. He later participated in the US’s invasion of Panama in 1989 that toppled the regime of General Manuel Noriega – who was wanted by American authorities on accusations of drug trafficking, money laundering and racketeering.