Question: When was the end date for the WWII battle for the city state that made The Greatness of a Hero TV drama?

full_context: Document 1: Forensic Heroes III: Forensic Heroes III (also known as FH3) is a 2011 Hong Kong police procedural television drama produced by Television Broadcasts Limited (TVB). The drama is one of three grand TVB productions used to celebrate the channel's 44th anniversary, the other two being "Super Snoops" and "Curse of the Royal Harem". It stars Wayne Lai , Maggie Cheung , Kate Tsui , Ron Ng , Aimee Chan , Edwin Siu , Nancy Wu & Ruco Chan in the third installment and reboot of the "Forensic Heroes" series, featuring new stories and characters. Mui Siu-ching, who also produced the original series, serves as the executive producer.
Document 2: Sergeant Tabloid: Sergeant Tabloid is a Hong Kong television drama produced by TVB under executive producer Nelson Cheung. The drama tells the story of female police officers of the Hong Kong Police Force, using their perspectives to look at issues of modern women experience in society. "Sergeant Tabloid" first aired on TVB's overseas affiliates and partners from 2 to 27 April 2012.
Document 3: Tan Poi Sin: Tan Poi Sin () is a TV drama and documentary director-producer from Malaysia. Established as a documentary director, she started out as a screenwriter, and was a producer-director in Astro. Her meritorious efforts in historical research landed her the role of Assistant Director in Astro AEC's remarkable documentary Malaysia, My Home! (2005). Her directorial work included Journey with Jason, Taste with Jason and Hai Zi. She produced, directed & wrote the script for New Village Stories (2009), which broke the rating record of locally produced Chinese content show on paid TV, and received tremendous response from the Chinese community.
Document 4: A Tough Side of a Lady: A Tough Side of a Lady () is a 1998 Hong Kong, ancient costumed comedy drama produced by TVB. The drama is a rendition of the legendary folklore of Hua Mulan, a brave girl who took her ailing father's place in the army to fight in battle. The series stars Mariane Chan as the protagonist Mulan and Wong Hei as a character created for the series. The series was aired as a Lunar New Year drama. Original broadcast of the series began on January 12 till February 6, 1998, on TVB's Jade channel, Monday–Friday during its 7:30–8:30 p.m. timeslot.
Document 5: Pacific War: The Second Sino - Japanese War between the Empire of Japan and the Republic of China had been in progress since 7 July 1937, with hostilities dating back as far as 19 September 1931 with the Japanese invasion of Manchuria. However, it is more widely accepted that the Pacific War itself began on 7 / 8 December 1941, when Japan invaded Thailand and attacked the British possessions of Malaya, Singapore, and Hong Kong as well as the United States military and naval bases in Hawaii, Wake Island, Guam and the Philippines.
Document 6: Pacific War: It is generally considered that the Pacific War began on 7/8 December 1941, on which date Japan invaded Thailand and attacked the British possessions of Malaya, Singapore, and Hong Kong as well as the United States military bases in Hawaii, Wake Island, Guam and the Philippines. Some historians contend that the conflict in Asia can be dated back to 7 July 1937 with the beginning of the Second Sino-Japanese War between the Empire of Japan and the Republic of China, or possibly 19 September 1931, beginning with the Japanese invasion of Manchuria. However, it is more widely accepted that the Pacific War itself started in early December 1941, with the Sino-Japanese War then becoming part of it as a theater of the greater World War II.[nb 9]
Document 7: Pacific War: Before the attack on Pearl Harbor, the 800,000-member America First Committee vehemently opposed any American intervention in the European conflict, even as America sold military aid to Britain and the Soviet Union through the Lend-Lease program. Opposition to war in the U.S. vanished after the attack. On 8 December, the United States, the United Kingdom, Canada, and the Netherlands declared war on Japan, followed by China and Australia the next day. Four days after Pearl Harbor, Nazi Germany and Fascist Italy declared war on the United States, drawing the country into a two-theater war. This is widely agreed to be a grand strategic blunder, as it abrogated the benefit Germany gained by Japan's distraction of the U.S. (predicted months before in a memo by Commander Arthur McCollum)[nb 12] and the reduction in aid to Britain, which both Congress and Hitler had managed to avoid during over a year of mutual provocation, which would otherwise have resulted.
Document 8: Consequences of the attack on Pearl Harbor: On December 8, 1941, Japan declared war on the United States and the British Empire. The Japanese document discussed world peace and the disruptive actions of the United States and the United Kingdom. The document claimed all avenues for averting war had been exhausted by the Government of Japan.
Document 9: Relic of an Emissary: Relic of an Emissary (Chinese: ; literally "Hongwu 32") is a 2011 Hong Kong historical fiction television drama serial produced by TVB.
Document 10: Modern history: On December 7, 1941, Japan attacked the United States at Pearl Harbor, bringing it too into the war on the Allied side. China also joined the Allies, as eventually did most of the rest of the world. China was in turmoil at the time, and attacked Japanese armies through guerilla-type warfare. By the beginning of 1942, the major combatants were aligned as follows: the British Commonwealth, the United States, and the Soviet Union were fighting Germany and Italy; and the British Commonwealth, China, and the United States were fighting Japan. The United Kingdom, the United States, the Soviet Union and China were referred as a "trusteeship of the powerful" during the World War II  and were recognized as the Allied "Big Four" in Declaration by United Nations These four countries were considered as the "Four Policemen" or "Four Sheriffs" of the Allies power and primary victors of World War II. From then through August 1945, battles raged across all of Europe, in the North Atlantic Ocean, across North Africa, throughout Southeast Asia, throughout China, across the Pacific Ocean and in the air over Japan.
Document 11: British Empire: In December 1941, Japan launched, in quick succession, attacks on British Malaya, the United States naval base at Pearl Harbor, and Hong Kong. Churchill's reaction to the entry of the United States into the war was that Britain was now assured of victory and the future of the empire was safe, but the manner in which British forces were rapidly defeated in the Far East irreversibly harmed Britain's standing and prestige as an imperial power. Most damaging of all was the fall of Singapore, which had previously been hailed as an impregnable fortress and the eastern equivalent of Gibraltar. The realisation that Britain could not defend its entire empire pushed Australia and New Zealand, which now appeared threatened by Japanese forces, into closer ties with the United States. This resulted in the 1951 ANZUS Pact between Australia, New Zealand and the United States of America.
Document 12: The Greatness of a Hero: The Greatness of a Hero is a Hong Kong television historical drama serial produced by TVB under executive producer Leung Choi-yuen. It first aired on Malaysia's Astro On Demand from 9 February to 6 March 2009 and on several TVB overseas cable channels in 2010. "The Greatness of a Hero" started its broadcast on Hong Kong's Jade and HD Jade channels on 2 April 2012.
Document 13: Curse of the Royal Harem: Curse of the Royal Harem (Traditional Chinese: 萬凰之王; literally "The King Among Ten Thousand Phoenixes") is a 2011 Hong Kong period drama produced by TVB under executive producer Chong Wai-kin. The 45-minute episodes aired from 31 October to 4 December 2011, in a total of 27 episodes in Hong Kong and 29 episodes for the overseas audience. Its stars Jessica Hsuan, Myolie Wu, Sunny Chan, Gigi Wong,
Document 14: Battle of Hong Kong: The Battle of Hong Kong (8–25 December 1941), also known as the Defence of Hong Kong and the Fall of Hong Kong, was one of the first battles of the Pacific War in World War II. On the same morning as the attack on Pearl Harbor, forces of the Empire of Japan attacked the British Crown colony of Hong Kong. The attack was in violation of international law as Japan had not declared war against the British Empire. The Hong Kong garrison consisted of British, Indian and Canadian units besides Chinese soldiers and conscripts from both within and outside Hong Kong.
Document 15: Attack on Pearl Harbor: The attack on Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service against the United States naval base at Pearl Harbor, Hawaii Territory, on the morning of December 7, 1941. The attack, also known as the Battle of Pearl Harbor, led to the United States' entry into World War II. The Japanese military leadership referred to the attack as the Hawaii Operation and Operation AI, and as Operation Z during its planning.
ground_truth: 25 December 1941
sub_queries: Which was the country for The Greatness of a Hero? Answer: Hong Kong
On what date did Battle of Hong Kong end? Answer: 25 December 1941