There was a war on Christmas

1. Was: Indicating a time in the past.
   
2. War: a state of armed conflict between different nations or states or different groups within a nation or state.
   
3. On: used as a function word to indicate a time frame during which something takes place
   
4. Christmas: An annual festival commemorating the birth of Jesus Christ. It is celebrated on December 25 - January 5 by the western church. 
   

The First Battle of Fort Fisher was a naval siege in the American Civil War, when the Union tried to capture the fort guarding Wilmington, North Carolina, the South's last major Atlantic port. Led by Major General Benjamin Butler, it lasted from December 24–27, 1864.
The Union navy first attempted to detonate a ship filled with powder in order to demolish the fort's walls but this failed; the navy then launched a two-day bombardment in order to demolish the fort and compel surrender. On the second day, the Union army started landing troops in order to begin the siege. But Butler got news of enemy reinforcements approaching, and in the worsening weather conditions, he aborted the operation, declaring the fort to be impregnable. To his embarrassment, Butler was relieved of command on January 8, 1865, and was replaced by Major General Alfred H. Terry, who led a follow-up expedition that captured the fort one week later.

Operation Linebacker II was an aerial bombing campaign conducted by U.S. Seventh Air Force, Strategic Air Command and U.S. Navy Task Force 77 against targets in the Democratic Republic of Vietnam (North Vietnam) during the final period of U.S. involvement in the Vietnam War. The operation was conducted from 18 to 29 December 1972, leading to several informal names such as The December Raids and The Christmas Bombings.[11] In Vietnam, it is just simply called "12 days and nights" (12 ngày đêm) and "Operation Dien Bien Phu in the air" (Chiến dịch Điện Biên Phủ trên không) or just simply "Dien Bien Phu in the air" (Điện Biên Phủ trên không). Unlike the Operation Rolling Thunder and Operation Linebacker air interdiction operations, Linebacker II was designed to be a "maximum effort" bombing campaign to "destroy major target complexes in the Hanoi and Haiphong areas, which could only be accomplished by B-52s".[12][13] It saw the largest heavy bomber strikes launched by the U.S. Air Force since World War II.[citation needed

"A battle is a military conflict between two or more armed forces that are well defined in duration, area, and force commitment. War is an intense armed conflict between Militaries, Governments characterized by extreme violence, aggression, destruction, and mortality that stretches for many months or years."