[1][2] Centered in section 107 of Providence Park in Portland, Oregon, the Army has grown steadily over the years to encompass much of the north end of the stadium.

As noted in a feature story on the front page of The Oregonian's Sports section in 2004,[6] the Army had grown from a small group of dedicated fans to approximately 200 passionate supporters.

[11] In the piece, sports columnist John Canzano said of the Army:Drumming, chanting, scarf-wearing soccer supporters transformed overnight from a band of PGE Park rowdies to an effective and influential political organization.

Their political clout ends up greasing the wheels on the effort to bring Major League Soccer to Portland.The supporters group gained national exposure in 2009 when they were featured in a two-page photo spread in the July 13–20 issue of Sports Illustrated[12] which showed Army members celebrating after the Timbers scored against Seattle Sounders FC of MLS in the third round of the 2009 Lamar Hunt U.S. Open Cup, a game they lost 2–1.

The group engages in a number of charitable activities, including volunteering for the Portland-based nonprofit Friends of Trees[17] and raising money for a trust fund established for Keiana Serrill, the granddaughter of Timber Jim, the team's lumberjack mascot.

[23] A protracted public battle between the Army and MLS brass occurred, culminating in a protest during the August game against Seattle where the TA deliberately stayed silent for the first 33 minutes of the nationally-televised clash to commemorate 1933, the year that the Iron Front was disbanded in Nazi Germany.

[25] This was a rare instance in American sports (and one of the first in MLS) that a supporter group had directly taken on the league with an organized response and forced a change in policy.

[26] After the George Floyd/Black Lives Matter protests swelled nationwide and with national attention on Portland, the Army released a statement re-upping their support for marginalized people of color and protestors.

Included in the official release, the supporter group stated that they "strongly oppose the systems of racism and injustice that have caused so many black deaths in our country and our communities.

Owner Merritt Paulson released a statement shortly afterward stating that Wilkinson would no longer oversee Thorns decisions as an investigation commenced.

[33] The Timbers, one of MLS' attendance leaders and once owners of a lengthy season-ticket waitlist, only managed five sellouts through the regular season, thought to be at least in part due to the lasting effects of the COVID-19 pandemic but also anger from the NWSL scandal.

[35] On October 4, 2022, the Timbers Army and Rose City Riveters formally demanded Wilkinson and Golub leave the club, and Paulson sell.