Great Patriotic War/World War Two: 1941 to 1945.
U.S. World War Two era M101 105-millimeter (105mm) ‘howitzer’ (short gun tube [barrel] artillery) still in use by Philippines.
I edited together several videos via U.S. Marine Corps, recorded during the October 2019 KAMANDAG wargame. KAMANDAG is an acronym for the Filipino phrase Kaagapay Ng Mga Mandirigma Ng Dagat, which translates to Cooperation of Warriors of the Sea:
The United States’ military still uses the M101 for ceremonies.
New Jersey Army National Guard’s M101 howitzer during Memorial Day celebrations.
U.S. Marine Corps M101 during change of command ceremony on Camp Lejeune, North Carolina.
Both the U.S. M101 and Soviet ZiS-3 were used by various countries during the Cold War (approximately 1947 to 1991).
The ZiS-3 (76-мм дивизионная пушка обр. 1942 г. [ЗиС-3]) is considered to be a ‘divisional/regimental’ or ‘field’ gun for use by front line troops, due to its relatively small projectile and short range (compared to larger artillery).
Some ‘official’ sources say the ZiS-3 was in combat use by militaries around the world until 1990 (end of the Cold War). However, the above photo shows a Serb ZiS-3, supposedly used during the war in the former Yugoslavia, being inspected by U.S. Soldiers in Zvornik, Serbia, in 1996.
The ZiS-3 (aka M1942) was so good that the invading Germans captured them for their own use against the Soviets!
The WW2 (Great Patriotic War) era Soviet 76.2mm artillery gun is still being used by Serbia for ceremonial purposes. I edited this from several Serbian Armed Forces videos, recorded from the 14FEB2025 Serbian Statehood Day, and the 11NOV2024 Armistice Day (Veterans Day in the United States), ceremonies:
More artillery: 
Utah joins Red Coats to pound Michigan!
2S1, from Cold War to Ukrainian Border Crisis!
2S3 Akatsiya (2C3 Акация), Cold War to Ukraine Border Crisis!
Battle Tanks: 
T-34-85, FROM PATRIOTIC WAR (WW2) TO COLD WAR AND BEYOND?
