The post popped up in select Instagram feeds shortly before the election in 2016. Its photo depicted an anonymous black-clad woman on an airport tarmac, crying over a metal casket covered in an American flag. “Killary Clinton will never understand what it feels like to lose the person you love for the sake of your country,” the caption began. “Honoring the high cost paid by so many families to protect our freedom. Buy a T-shirt—help a veteran.”

In the world of military memes, it was a pretty standard sponsored post by the popular american.veterans Instagram account, targeted at members of online groups for the United States Army Reserve, Iraq and Afghanistan Veterans of America, Concerned Veterans for America, and a fan page for Chris Kyle of American Sniper fame. The apparel sales were real, but the post was not concocted by a veteran—not a United States veteran, at least. The account that posted it was controlled by Russia’s Internet Research Agency; for just over 3,000 rubles (about $50), its “Killary” post was targeted to nearly 18,000 mostly-veteran Instagram users; at least 500 clicked through to the third-party site selling “MilVet” apparel. “Who profits from sales of MilVet merchandise in any of these cases is also unknown,” investigators now say, though it’s not hard to imagine who profited from the post’s political message.

It was but one of thousands of politically charged social media posts directed at military veterans by foreign actors, according to a new 191-page investigative report released Tuesday by Vietnam Veterans of America (VVA). And rather than taper off after the 2016 election, these shady accounts and shareable memes have continued to proliferate. “Known Russian propaganda and similar politically divisive content that targets service members and veterans is being spread by admins from at least 30 foreign countries, with concentrations in Eastern Europe and Vietnam,” VVA chief investigator Kristopher Goldsmith, writes in the report’s executive summary.

That report, which builds on inquiries begun by the House Permanent Select Committee on Intelligence, also details how an online account claiming to be a wing of ISIS called the “Cyber Caliphate” was, instead, a Russian cutout. Under the guise of Islamist terror, the Russian account sent a string of threatening messages to military wives: “We know everything about you, your husband and your children and we’re much closer than you can even imagine.” Mission accomplished: The messages prompted a cycle of alarmist national news coverage. “Online Threat to Army Wife: ISIS Is Coming For You,” the Fox News Insider headline blazed, incorrectly.

Major veteran service organizations spend a great deal of time protecting their members from affinity scams; that was the genesis of VVA’s online-troll tracking project. Goldsmith began by tracking impostor groups on Facebook, including a highly popular fake VVA page that was run not out of Washington but Plovdiv, Bulgaria. “The page was spreading falsified news—changing dates on true stories and sensationalizing and exaggerating otherwise benign reporting—on issues that are closely associated with this specific population,” he writes. In the course of his research, he also discovered that until last month, a 131,000-member Vets for Trump page was run by admins based in Macedonia.