General Walker to keynote Perimeter PREVENT

The Security Industry Association said on May 14 that retired U.S. Army Major General William J. Walker will take part in the morning keynote at Perimeter PREVENT 2026, a one-day perimeter security conference scheduled for June 24 in Washington, D.C. SIA said Walker will appear in a fireside chat as part of the event’s published agenda and speaker lineup. The group describes Perimeter PREVENT as its premier event focused on perimeter security for government and commercial sites, critical infrastructure and events. June 24 is the date listed on SIA’s event site for the 2026 program, which is set in Washington and opens with registration at 7:30 a.m. The morning keynote is scheduled after opening remarks and is billed as a fireside chat with Walker. SIA’s agenda says the discussion will be moderated by Rachelle Loyear, vice president of integrated security solutions at Allied Universal. ### Which role is Walker holding at the event? (securityindustry.org) SIA’s speaker materials identify Walker as vice president and corporate security director at Allied Universal Security Services. Trade coverage of the agenda uses a longer title — vice president and corporate security director, enterprise accounts — for the same keynote appearance. Allied Universal said on Sept. 6, 2023, that it had appointed Walker to the position of vice president and corporate security director. (prevent.securityindustry.org) The company said at the time that he would serve as a resource to customers developing comprehensive security strategies, drawing on civilian and military leadership experience. ### Why is Walker a notable choice for this slot? (prevent.securityindustry.org) Walker’s public biography on event and industry sites says he brings more than 30 years of service in security, law enforcement and military leadership. The same materials say he previously served as a Drug Enforcement Administration special agent and as the 38th Sergeant at Arms of the U.S. House of Representatives. (aus.com) Allied Universal said in its 2023 announcement that Walker joined after his House role and would help advise customers on enterprise security planning. That background gives the conference a keynote speaker whose résumé spans military, federal law enforcement and private-sector security work. That characterization is an inference from the roles listed in the cited biographies and appointment announcement. (securitysales.com) ### What else is on the June 24 agenda? SIA said the June 24 symposium will bring together policymakers, federal agency personnel, architects, engineers and security solution providers. The association said the program will cover issues tied to perimeter defense for physical environments including government and commercial facilities, critical infrastructure and events. (aus.com) The event site lists a full-day program beginning with breakfast and registration and continuing through sessions on design, technology and security practice. The keynote with Walker is positioned as the morning anchor session near the start of the day. ### Where can readers verify the lineup? SIA published the agenda and speaker announcement on its website on May 14. The same details were echoed in trade reports from Security Sales & Integration, SecurityInfoWatch and SDM, each of which identified Walker as part of the keynote lineup for the June event. (securityindustry.org) (prevent.securityindustry.org) The Perimeter PREVENT event page also carries the morning keynote listing with Walker and Loyear. As of May 15, 2026, that page shows the June 24 schedule in Washington, D.C., and names the participants attached to the keynote session. June 24, 2026, is the next dated milestone in the event materials, with Walker and Loyear listed for the morning keynote fireside chat in Washington. SIA’s event site and agenda page carry the current program details and speaker names. (securityindustry.org) (prevent.securityindustry.org)