Question: Were the Battle of Chosin Reservoir and Operation Grenade both wartime campaigns?

Context articles: Alpha L. Bowser
Hector A. Cafferata Jr.
Operation Grenade
VMR-152
Robert S. Kennemore
USS Chosin
The Battle of Chosin
James E. Johnson
Battle of Chosin Reservoir
Battle of Chosin Reservoir order of battle

Alpha Lyons Bowser (August 21, 1910 – July 13, 2003) was a United States Marine Corps lieutenant general.
 He was a combat veteran of World War II and the Korean War — decorated for his actions during the Battle of Iwo Jima and in the Battle of Chosin Reservoir.
Hector Albert Cafferata Jr., USMCR (November 4, 1929 – April 12, 2016) was a United States Marine who received the Medal of Honor for his actions at the Battle of Chosin Reservoir during the Korean War.
 In November 1950, Private First Class Cafferata single-handedly held off a regimental-strength enemy and saved wounded Marines by hurling away a live grenade that had landed in their midst, at the cost of serious personal injury.
During World War II, Operation Grenade was the crossing of the Roer (Rur) river between Roermond and Düren by the U.S. Ninth Army, commanded by Lieutenant General William Hood Simpson, in February 1945.
Marine Transport Squadron 152 (VMR-152) was an air transport of the United States Marine Corps that was responsible for the movement of personnel, equipment, and supplies.
 The squadron flew fixed-wing cargo aircraft to include the R4D Skytrain and the R4Q Flying Boxcar.
 The squadron saw combat during World War II and the Korean War with their most notable contributions coming during the early stages of the Battle of Guadalcanal and during the Marine breakout during the Battle of Chosin Reservoir.
 The squadron was decommissioned in the late 1950s.
Robert Sidney Kennemore (June 21, 1920 – April 26, 1989), of Greenville, South Carolina, earned the Medal of Honor during the bitter Chosin Reservoir campaign of November 1950, when he deliberately covered an enemy grenade with his foot to keep his men from being wounded or killed.
 SSgt Kennemore, who lost both of his legs through his unselfish sacrifice, was the 23rd Marine to receive his nation’s highest award for heroism in Korea.
 The medal was presented to him by President Harry S. Truman during ceremonies at the White House on November 24, 1952.
USS "Chosin" (CG-65) is a "Ticonderoga"-class guided-missile cruiser serving in the United States Navy.
 She is named in honor of the Battle of Chosin Reservoir of the Korean War.
 Commissioned in 1991, she is currently serving in the Pacific Fleet, based at San Diego.
 The cruiser has participated in Operation Southern Watch, Operation Enduring Freedom, and Operation Iraqi Freedom.
 She is the first US Navy ship to bear this name.
The Battle of Chosin is a 2016 American documentary film about the Battle of Chosin Reservoir during the Korean War.
 The film is directed by Randall MacLowry and was distributed on the PBS network.
 It premiered on November 1, 2016 as part of the "American Experience" series.
Sergeant James Edmund Johnson (January 1, 1926–December 2, 1950) was posthumously awarded the United States' highest decoration — the Medal of Honor — for his heroic lone fight on December 2, 1950, to cover the withdrawal of his platoon during the bitter Chosin Reservoir campaign in Korea.
 When last seen by his comrades he was wounded, but still engaging the enemy in close grenade and hand-to-hand combat.
 The enemy were wearing the uniforms of friendly troops at the time.
 He was listed as missing in action until January 1954, when his status was officially changed to "presumed dead."
The Battle of Chosin Reservoir, also known as the Chosin Reservoir Campaign or the Changjin Lake Campaign (Korean: 장진호 전투 ; hanja: 長津湖戰鬪; rr: "Jangjin ho jeontu"; ), was a decisive battle in the Korean War.
 The name "Chosin" is derived from the Japanese pronunciation ""Chōshin"", instead of Korean pronunciation
Battle of Chosin Reservoir Order of Battle is a list of the significant units that fought in the Battle of Chosin Reservoir between November 27, 1950 and December 13, 1950.