Calendar of Military Events, Holidays & Observances

SDI has decades of experience producing communication campaigns and world-class events for the nonprofits, government agencies and corporations supporting our military and veterans’ communities. Our experience has taught us where to find trusted sources for making our clients’ work accurate, timely and relevant. For years, these sources lived in our team’s transition binders, Slack channels, web browsers and collective memories. Now, we have organized SDI’s institutional knowledge in an interactive calendar, and we are sharing it with the world.

If you support those who serve as a communicator, marketer, event producer, or advocate, we hope you find our military events and observances calendar valuable. Please bookmark it, share it, and send us your suggestions for other dates you think should be included (see link below). Please note, for at least a little longer, COVID-19 protocols may affect in-person events, so check back with the authoring organization for updates.

Student Veterans of America National Conference


Student Veterans of America (SVA) is the premier organization leading service, research, programs, and advocacy for veterans in higher education. Its mission is to act as a catalyst for student […]

VFW Auxiliary Mid-Year Conference


Members attending will join VFW Auxiliary National President Jane Reape on a cruise to sunny Mexico for the Auxiliary’s Mid-Year Conference January 22-27, 2023. The ship sails roundtrip from Los […]

Black History Month

Explore the rich contributions and accomplishments of Black Americans throughout U.S. Military history with these resources:

USO Birthday


2023 marks the 82nd Birthday of the United Service Organizations (USO). “Since 1941, the USO has been the nation’s leading organization to serve the men and women in the U.S. […]

National Salute to Veteran Patients

“The week of February 14 each year is your opportunity to say thank you to a special group of men and women, the more than 9 million Veterans of the […]

Navy Seabee Birthday


March 5, 2023 marks the 81st Birthday of the Navy Seabees. Learn more:

Air Force Association’s 2023 Warfare Symposium

“AFA’s Warfare Symposium is a premier event for the U.S. Air Force and U.S. Space Force and the aerospace and defense industry that supports them. A leading professional development event, […]

K9 Veterans Day

"Service members have relied on canine comrades since the beginning of organized warfare, but it wasn’t until March 13, 1942, when the United States Army began training dogs for the […]

2023 AUSA Global Force Symposium & Exposition

"The 2023 AUSA Global Force Symposium & Exposition (GFS&E) is a three-day event, hosted by Army Materiel Command alongside the Office of the Assistant Secretary of the Army (Acquisition, Logistics […]

Purple Up! Day

Throughout the Month of the Military Child, DoDEA encourages schools and communities to plan special events to honor military children. Wearing purple is a visible way for everyone to show […]

Anniversary of the End of the Vietnam War

April 30, 2023 marks the 48th Anniversary of the End of the Vietnam War. Learn more:

Victory in Europe Day

May 8, 2023 marks the 78th Anniversary of the End of World War II in Europe, also known as Victory in Europe Day (or V-E Day). Learn more:

Military Spouse Appreciation Day

"Military Spouse Appreciation Day is a day we honor the contributions and sacrifices made by military spouses. The support and commitment they provide helps keep our country safe. Military spouses […]

National Veterans Golden Age Games


“The National Veterans Golden Age Games is the premier senior adaptive rehabilitation program in the United States, and the only national multi-event sports and recreational seniors’ competition program designed to […]

Memorial Day

“Memorial Day, originally called Decoration Day, is a day of remembrance for those who have died in service of the United States of America.”  Learn more: 

PTSD Awareness Month

“June is National Post-Traumatic Stress Disorder Awareness Month, and is intended to raise public awareness about issues related to PTSD, reduce the stigma associated with PTSD, and help ensure that those suffering […]

Midway Night

The Battle of Midway Celebration Dinner is held every June. The date for 2023 has not yet been announced. Please check the Battle of Midway Celebration website (link below) for […]


June 6, 2023 marks the 79th Anniversary of D-Day. "It is hard to conceive the epic scope of this decisive battle that foreshadowed the end of Hitlers dream of Nazi […]

Flag Day

"In 1893, the Society of Colonial Dames succeeded in getting a resolution passed to have the flag displayed on all of the city’s public buildings. Elizabeth Duane Gillespie, a direct […]

Independence Day

"Independence Day commemorates the adoption of the Declaration of Independence on July 4, 1776 by the Continental Congress declaring that the thirteen American colonies were no longer part of the […]

National Veterans Wheelchair Games

“The National Veterans Wheelchair Games is the world’s largest annual wheelchair sports event solely for military veterans. The event demonstrates the unstoppable character of veterans and seeks to foster wider […]

VFW National Convention

The 124th VFW National Convention will be held in Phoenix from July 22nd-27th. “Every year, thousands of VFW and Auxiliary delegates gather to represent the organization’s total membership of more […]

Purple Heart Day

"Purple Heart Day is a day of observance to commemorate the creation of the Purple Heart in 1782." Learn more:

Vietnam Veterans of America’s National Convention

Vietnam Veterans of America’s 2023 National Convention will be held at the Rosen Centre, Orlando, FL. “VVA’s goals are to promote and support the full range of issues important to […]

PVA 11th Annual Healthcare Summit + Expo

“For ten years, Paralyzed Veterans of America has expanded its commitment to spinal cord injury/disease (SCI/D), MS, and ALS patient care through its annual Summit. Summit is an intensive, three-day […]

National Airborne Day

To learn about National Airborne Day, follow the link below:

NGAUS 145th General Conference and Exhibition

“More than 2,000 Army and Air National Guard officers from all 50 states, three territories and the District of Columbia gather to connect, party and get down to business setting […]

AMVETS National Convention

The 78th AMVETS National Convention is set to be held in Pittsburgh in 2023. Please visit the link below as more information becomes available.

Event Series Hispanic Heritage Month

Hispanic Heritage Month

“Hispanic and Latino Americans have distinguished themselves in the U.S. military for as long as our country has existed.”  Learn more: 

National Veterans Small Business Week

"Each year the U.S. Small Business Administration (SBA) celebrates, connects, and empowers service members, veterans, National Guard and Reserve members, and military spouses during National Veterans Small Business Week (NVSBW). […]

Northern Virginia Veterans Parade

Old Town Manassas, VA

VetPar, Inc. annually hosts the Northern Virginia Veterans Parade in Manassas, VA. The 2023 parade will be held on Saturday, November 4 at 11:00 am and honors all veteran and […]

Veterans Day

"Veterans Day, formerly known as Armistice Day, was originally set as a U.S. legal holiday to honor the end of World War I, which officially took place on November 11, […]

National Wreaths Across America Day

"Each December on National Wreaths Across America Day, our mission to Remember, Honor and Teach is carried out by coordinating wreath-laying ceremonies at Arlington National Cemetery, as well as at […]