The game "Hanoi 12 Days and Nights," developed by Pirex Games, delves into the revolutionary spirit of the era. It ambitiously aims to recreate the intense aerial conflict known as the "Dien Bien Phu in the air," a testament to the resilience of Hanoi's citizens against the formidable B-52 bombing campaigns launched by the US imperialists. This pivotal moment occurred towards the end of December 1972, leading to the eventual signing of the Paris Agreement, which marked a significant step towards peace in North Vietnam.

From the perspective of the United States, this period was known as Operation Linebacker II, often referred to as the "Dien Bien Phu in the air" campaign. It represented the final military endeavor by the US against the Democratic Republic of Vietnam during the Vietnam War. The operation spanned from December 18 to December 30, 1972, and was initiated following the breakdown of the Paris Conference. The collapse was due to unresolved disagreements between the Democratic Republic of Vietnam and the US regarding the terms of the peace agreement.