Stack Up's Call to Arms 11 LIVE Hits Twitch This Veterans Day, 2–10 PM CT

Today is Veterans Day, and for us it's personal. MilSim Units is owned and operated by U.S. veterans. Our founder and owner, LaFlash, served in the U.S. Army, and our main developer, Jake, served in the U.S. Air Force. The habits they picked up in uniform shaped how this platform was built: show up for your people, do the work right, and leave things better than you found them.

So to every veteran reading this, and to everyone still serving: thank you. We mean that.

We also know where this hobby comes from. Military simulation leans heavily on the veteran community. Veterans run units, write SOPs, teach new players how real teams move and talk, give developers feedback on what actually works, and push the whole genre toward more authenticity. Milsim wouldn't be what it is without them.

That's why we wanted to point you toward one of the best ways to give back today. Stack Up is marking Veterans Day with its annual live Twitch fundraiser, raising money to get gear and support to the people it serves.

Stack Up's Call to Arms 11 LIVE streams Wednesday, November 11, from 12:00 p.m. to 8:00 p.m. PST, which is 2:00 p.m. to 10:00 p.m. CT, on the Stack Up Twitch channel. Ten streamers will be there in person at Geeky Teas & Games, with Navy veteran St_Jeezy as Master of Ceremonies. Stack Up says he'll be "helping us run the show, providing commentary and excitement for the event as streamers fundraise."

What the money is for

Stack Up is a nonprofit founded in 2015 by U.S. Army veteran Capt. Stephen Machuga (ret.), who is still listed as founder and CEO on the organization's own origin story. Its tagline is "Veterans are our mission. Gaming is our passion." The group uses video games to support U.S. and Allied veterans and active-duty service members, with a focus on mental health. That work runs through four programs: Supply Crates, which are care packages of games, gear and consoles sent to deployed units and veterans in need; Air Assaults, all-expenses-paid trips to gaming and geek culture events; The Stacks, local volunteer teams; and the Stack Up Overwatch Program, or StOP, which offers peer-to-peer mental health support through Stack Up's online community.

Call to Arms is their year-long fundraising campaign. Call to Arms LIVE is the Veterans Day event at the center of it. Stack Up describes it as the annual gathering where content creators "play games and raise money to benefit Active Duty service members and Veterans through Stack Up's programs."

Last year's show marked 10 years of that work. Ten streamers competed in mini-games at Geeky Teas & Games, and as they fundraised they read out the stories of 10 veterans who would each receive a PC after the event. This year they're back at the same venue. Streamers can win a prize for every $1,000 they raise, and six of them, in Stack Up's words, "will also have the opportunity to sponsor a PC that we'll be sending out to some Veterans by raising $5000."

That last part is worth being precise about. Stack Up is not promising that every $5,000 raised automatically becomes another PC. Six of the streamers can each sponsor a machine if they hit that mark.

Who's on the stream

St_Jeezy joined the Stack Up Stream Team this year. The 10 creators joining him are Hyf1re, last year's Call to Arms X Champion; Lord_Zath; PoisonHearrt; DreamWarrior, who has been to five of these live events; PacificCreative, last year's top fundraiser; Howey_Doodat and KXCobraful, both first-timers at the live show; CrypticFox; Navy veteran Th3BeardedBaron; and WinnieDaPoohhh.

You can watch the whole thing on twitch.tv/stackupdotorg. If you want to donate, Stack Up's donation page is the straightforward route, and the year-long Call to Arms 2026 campaign is also on Tiltify.

How a unit can show up

You don't have to be a streamer to be useful on a day like this. A unit can throw the stream up in Discord or put it on after work, drop the Twitch link in the announcement channel, and let people donate if they're able. If you've got veterans in the roster — and most milsim units do — this is also a decent moment to say so, plainly, and thank them.

MilSim Units isn't being paid to write this. We cover community events when they're real and relevant, and this one lands on Veterans Day.

If you're looking for a team to spend the rest of the week with, you can find one on MilSim Units.