October 1, 2026 Holiday — Defenders of Ukraine Day: History and Greetings
On October 1, 2026, Ukraine will celebrate Defenders of Ukraine Day—a national holiday dedicated to military personnel, veterans, and everyone who has defended and continues to defend the country. The holiday dates back to 2014 and was observed on October 14 until 2023. The new date was chosen due to the rescheduling of the Feast of the Intercession of the Most Holy Mother of God following the transition of the Orthodox Church of Ukraine (OCU) and the Ukrainian Greek Catholic Church (UGCC) to the New Julian calendar.
In 2026, Defenders of Ukraine Day falls on October 1, a Thursday. This date is officially enshrined in Ukrainian law. In Ukraine’s calendar of public holidays, October 1 is also designated as Veterans’ Day and Ukrainian Cossacks’ Day. This is not merely a professional holiday for military personnel. It is dedicated to everyone who, over the years, has defended Ukraine’s independence and territorial integrity. Therefore, on this day, we honor not only those currently serving in the Armed Forces of Ukraine but also veterans, volunteers, medical personnel, and others who have participated in the country’s defense.
The Ministry of Veterans Affairs emphasizes that this day applies to both active-duty service members and veterans, both men and women. In fact, it is a day of gratitude to those who stood up to defend Ukraine, often risking their own lives and health.
How the Holiday Came to Be
The modern Defenders of Ukraine Day was established in 2014. At that time, President Petro Poroshenko signed a decree designating October 14 as Defenders of Ukraine Day. The document stated that the holiday is intended to honor the courage and heroism of those who defend Ukraine’s independence and territorial integrity. It also highlighted the military traditions and heroic deeds of the Ukrainian people. The new holiday was intended to replace the Soviet tradition of celebrating Defenders of the Fatherland Day on February 23. The 2014 decree repealed the previous presidential decree regarding this holiday, which had Soviet origins.
Initially, Defenders of Ukraine Day was celebrated on October 14. This date was not chosen at random: it coincided with the Feast of the Protection of the Most Holy Mother of God—an important day in Ukrainian religious and military tradition. In 2021, the name of the holiday was changed to Defenders of Ukraine Day. In this way, the state officially emphasized the role of women in defending the country. The law explicitly linked the name change to the need to acknowledge the contributions of female service members, who defend Ukraine on an equal footing with men.
Why the holiday was moved from October 14 to October 1
The date change took place in 2023. At that time, Ukraine moved Defenders’ Day from October 14 to October 1. The reason is related to the transition of the Orthodox Church of Ukraine and the Ukrainian Greek Catholic Church to the New Julian calendar. Due to this transition, the date of the Intercession of the Most Holy Mother of God shifted from October 14 to October 1.
Since Defenders’ Day had historically been linked specifically to the Feast of the Intercession, the national holiday was also moved. The relevant changes were made by presidential decree in July 2023, and Law No. 3258-IX established October 1 as the official date of the holiday. Ukraine celebrated Defenders’ Day on the new date for the first time in 2023. On that same October 1, the holiday was officially celebrated for the first time alongside the new date for the Intercession of the Most Holy Mother of God. Therefore, October 1 now combines several important traditions for Ukrainians: honoring defenders, the Intercession of the Most Holy Mother of God, and Ukrainian Cossack Day.
Why Is the Holiday Linked to the Intercession of the Holy Virgin?
For centuries, the Intercession of the Most Holy Mother of God has held special significance for the Ukrainian military. The Ukrainian Institute of National Remembrance notes that the Cossacks revered the Intercession as one of their greatest sacred festivals and considered the Mother of God their patroness. Because of this, the Intercession came to be known by another name—the Cossack Intercession. This connection to military tradition existed long before the emergence of the modern Ukrainian state. Cossack military communities regarded the Intercession as a special day and associated it with protection from enemies.
This tradition continued into later periods of Ukrainian history. The Ukrainian military of the early 20th century preserved part of the Cossack heritage in the names of its units, military symbols, structure, and uniforms. That is why, when the state established a new Defender of Ukraine Day in 2014, the date of the Intercession of the Theotokos was chosen. This was intended to demonstrate the connection between the modern Ukrainian military and previous generations of defenders. After the churches switched to the New Julian calendar, this tradition did not disappear; it simply took on a new date—October 1.
Who Is Honored on This Day
Defenders of Ukraine Day encompasses a much broader group of people than just the military personnel currently on the front lines. On this day, we express our gratitude to those who currently serve in the Armed Forces of Ukraine and other components of the Defense Forces. We also honor male and female veterans who have completed their service but once defended the nation. Special remembrance is given to the fallen military personnel and civilians who lost their lives due to Russian aggression. On this day, many families visit the graves of their loved ones, light candles, and remember those who did not return from the war.
An important part of the holiday is also the recognition of female service members. Many women serve in the modern Ukrainian army, which is why in 2021 the government changed the name of the holiday, officially adding the word “defenders.” Thus, October 1 is not just about military service. It is a day of remembrance, gratitude, and respect for those who defended the country throughout its history.
How Defenders’ Day Is Celebrated
On this day, various cities across Ukraine host official ceremonies, state award presentations, meetings with military personnel and veterans, themed exhibitions, and educational events. For example, during the first observance of the holiday on October 1, 2023, President Volodymyr Zelenskyy presented state awards to service members, bestowed honorary titles, and awarded battle flags to military units. Also on this day, military cadets took their oaths.
The Ukrainian Institute of National Remembrance organizes information campaigns, lectures, exhibitions, and other educational events leading up to the holiday. In 2025, for example, an exhibition on the history of the Ukrainian military opened in the Kyiv Metro. For ordinary people, this day does not necessarily have to be associated with large-scale official events. You can simply personally thank a soldier or a veteran, support the family of a defender, or make a donation to help a military unit.
It’s also important to remember those who have fallen. That’s why, on this day, people visit memorials and cemeteries, lay flowers, light candles, and participate in commemorative events. Educational and cultural institutions may hold classes, themed gatherings, exhibitions, and discussions about the history of the Ukrainian military. This provides an opportunity to discuss not only the current war but also the long history of the struggle for Ukrainian statehood.
What traditions are associated with this day?
One of the main modern traditions is expressing gratitude to service members and veterans. People send greetings to loved ones who are serving or have served in the Armed Forces, post messages of support on social media, and assist volunteer organizations. Another important tradition is honoring the fallen. Families and communities remember the fallen defenders and visit their graves and memorials.
Volunteer efforts play a special role. For some, this means donating to support drones, vehicles, medical equipment, or other military needs. For others, it means helping veterans, wounded soldiers, or their families. There is also a cultural component. During this period, exhibitions on military history, screenings of documentaries, and meetings with military personnel, veterans, and historians are held. Also, on October 1, Ukraine celebrates Ukrainian Cossack Day. Because of this, many events honor not only modern-day soldiers but also the Cossack heritage and the history of the Ukrainian military.
Interesting Facts About Defenders’ Day
First, this holiday is relatively new in its current national format. It was officially established in 2014, after the start of Russian aggression against Ukraine.
Second, it was originally called Defenders of Ukraine Day and was observed on October 14. The name was changed in 2021, when the word “female defenders” was added.
Third, starting in 2023, the holiday will be observed on a new date. This change is due to the calendar reform implemented by the Orthodox Church of Ukraine (OCU) and the Ukrainian Greek Catholic Church (UGCC), which moved the Feast of the Protection of the Holy Mother of God to October 1.
Fourth, several holidays are observed simultaneously in Ukraine on October 1. In addition to Defenders’ Day, these include Ukrainian Cossack Day and Veterans’ Day.
Fifth, the historical connection to the Intercession of the Most Holy Mother of God explains why this particular date has become symbolic for the Ukrainian military. The Cossack tradition of honoring the Mother of God as a protector is closely linked to the idea of defending Ukrainian soil.
Sixth, in the modern celebration, there is no distinction between a “male” and “female” military. The term “defenders” officially emphasizes that the defense of Ukraine is a shared responsibility of service members of all genders.
How to Greet Defenders
On this day, it’s best to speak simply and sincerely. You can wish a service member safety, strength, and a speedy return home. For a veteran, thank them for their service and remind them that their contribution is remembered.
You don’t have to use grand words. Sometimes a simple phrase is enough: “Thank you for defending Ukraine. Take care of yourself.” On this day, you can also support a service member’s family, help a veteran, or make a donation to a reputable charity or volunteer fundraiser. The main idea behind the holiday isn’t grand speeches or festive events. It’s a day to remember those who are defending Ukraine right now, to thank veterans, and to honor the memory of those who gave their lives for the country.
What to Remember on October 1
Defenders of Ukraine Day in 2026 falls on October 1. It is an official national holiday that combines the modern history of the Ukrainian military with the older tradition of the Intercession of the Theotokos and the Cossack military heritage. For Ukraine, this is first and foremost a day of gratitude. It serves as a reminder of those who are currently defending the country, of veterans, and of the fallen defenders.
And although the holiday has national status, its significance extends far beyond official ceremonies. It is an opportunity to say “thank you,” to support service members and veterans, to help those in need, and to honor the memory of the people thanks to whom Ukraine continues to fight for its freedom.
