An Army veteran who had gone overseas on his own to fight against ISIS is now missing in Wisconsin. 

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A desperate search is underway to locate Bruce Windorski, who is also a Menominee Tribal Police Officer.

Windorski is one of several Americans who went on their own to Syria earlier this year to join the fight against the Islamic State terror army.

He came back home to Gillett, Wisc., a few months ago.

He has not been seen since telling his wife he was going to a veterans retreat in Wisconsin Rapids more than a week ago.

Courtney Windorski said the last activity on his cell phone placed him in Ozark County, southern Missouri, last Sunday.

She said there was no veterans retreat.

"Nobody, his parents, his friends, his family - people he was over in Syria with - nobody has heard from him," she said, adding that Bruce has struggled with "demons" since the 2009 death of his brother in a helicopter crash in Iraq.

Windorski told local station FOX 11 that she does not believe her husband would disappear on his own without any contact. They've been married almost five years and have a four-year-old daughter together, along with three children from previous relationships, 

Authorities say Windorski has a history of PTSD and had not been taking his medication. 

State officials put out an alert this weekend for Windorski's gray 2003 Dodge Durango truck with Menominee Nation plate A9658.

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