The Pacific War (2105–2107) was a major international conflict between the Empire of Japan and an allied coalition that emerged as an outgrowth of the Vietnam War.
Assault on Ho Chi Minh CityEdit
On 18 July 2105, Japan launched a full-scale amphibious assault on Ho Chi Minh City, beginning the Vietnam War. The Japanese air force made indiscriminate use of napalm on the Northeast Region, resulting in thousands of civilian casualties, but the attack spurred the Hanoi Council to surrender to the peacekeepers and a joint front thwarted the ground assault. An amphibious assault on UN headquarters in Ho Chi Minh City forced the peacekeepers from the region and resulted in partial encirclement of Irish and UAR forces in the highlands to the north. The attack provided a pretext for war by each of the mission's sponsor states, including Japan's ally Indo-Persia, which promptly withdrew from the Greater East Asia Co-Prosperity Sphere, followed soon after by Gangnam. The People's Republic of Sichuan, meanwhile, delivered an ultimatum demanding Japanese withdrawal from China, and declared war after receiving no reply.
Fall offensives and expansion of UN mandateEdit
Allied intelligence uncovered the existence of pre-Cataclysm nuclear arsenals in the north and south of Vietnam, and UNVIFOR scrambled to fend off a second Japanese assault while the warheads were removed to Laos. Despite high casualties and eventual UN retreat from the Northeast Region, the arsenal was secured. Meanwhile in the south, a combined Malaccan-Texark fleet confronted the Imperial Japanese Navy, sustaining heavy losses but allowing a two-pronged counteroffensive that reclaimed the Mekong River Delta. In response to Japan's total war doctrine, the United Nations adopted Resolution 12 authorizing aggressive force against Japanese-held territories, and that officially renounced the legitimacy of the Empire of Vietnam. The United Arab Republic deployed two fresh corps to Vietnam to relieve it's expedition; while they operated under al-Karimi's command, they were not officially part of the UNVIFOR unit.
Victories in ChinaEdit
On the Chinese Eastern Front, there was significantly less success for the UN, with the might of Japan’s army being able to display itself fully. In many of the pitched battles, the Japanese overran the Chinese army. Meanwhile, Gangnam troops were more successful against the Japanese and secured the city of Tianjin and the surrounding area. This area was incorporated into the Transitionary State of Beijing.
Greece rejoined the war in the winter shortly after Rome recalled its UN contingent over its criticisms of the Allies' "slow" progress. In an attempt to relieve pressure on the main front and sever Japanese supply lines, both countries organized an amphibious assault on Taiwan. The campaign was intended to be commanded by Greek general Xylon Toto, but he was attacked during passage through the Suez Canal by Libyan separatists and hospitalized in Cairo, turning command over to Emperor Andreas, who had decided to lead the troops from the front. The invasion fleet came under early attack by the IJN, and the landing was an unmitigated disaster as Andreas was cut down in the first wave. The force quickly retreated but was intercepted again, resulting in the near-total destruction of both countries' armed forces and humiliating peace settlements the following year.
Winter stalemate in VietnamEdit
Following the death of Mayor Hannegan that winter, Texarkana adopted a regionalist foreign policy leading to an about-face on its international commitments. It abruptly withdrew from UNVIFOR, making white peace with Japan over what it claimed was a "mutual threat" posed by Greek involvement. The action was widely condemned by its former allies, and its subsequent defiance of Resolution 14 and withdrawal from the UN led to rapid deterioration of international face.
Allied forces, meanwhile, continued to push northward in Vietnam during the winter of 2105, but began to encounter heavy fortifications built with Vietnamese slave labour. Japanese offensives in the northern regions managed to force a UN withdrawal into Laos, but they were in turn expelled from the Northeast by a fully-mobilized Chinese army.
Spring campaign and Japanese withdrawalEdit
Japan continued fortifying its shrinking holdings in Vietnam, and rumors began circulating that the military was deliberately infecting prisoners of war with biological agents. Fearing a widespread contamination trap, the Allies initially withheld further advance, but intelligence revealed the Japanese were withdrawing en masse to reinforce the Chinese front. UN forces launched a mass push to Hanoi in spring of 2106, in a bid to catch the retreat as the Allied navy moved to intercept the convoy; while replenished Allied fleets were still unevenly-matched with the IJN, the Japanese had completely withdrawn their air support and the convoy was devastated by bombing runs. Without Japanese protection, the Vietnamese puppet government imploded.
UN troops entered Hanoi to find the city literally destroyed and nearly the entire population murdered; search and rescue effort uncovered only 124 survivors. The atrocities further hardened the resolve of combatants in the ongoing Pacific War.
Nuclear strike on CairoEdit
On 14 September, a Japanese nuclear missile hit Cairo. Due to received intelligence, casualties were minimal, as the majority of the city was evacuated. However, the nuclear attack had disastrous ecological effects on the water of the Nile. The nuclear attack as the final straw for the international community, and the United Nations adopted Resolution 14 that indicted Ruchang and his government for widespread and wanton war crimes and crimes against humanity, declaring Japan a rogue state and officially sanctioning the Allied coalition to arrest the government and military leadership.
Defeats in ChinaEdit
On the Chinese front, the tactical ingenuity of China’s forces allowed them to gain the upper hand against overwhelming Japanese forces arrayed against them. With the help of Gangnam from the north, the advances of Japan were stopped and in Southern China, the Chinese even managed to make gains against the enemy. Another attempt to attack Taiwan was made and once again it was repulsed, gaining Taiwan the fame of an impregnable fortress.
Japan's crumbling war effort was compounded by a nationwide food poisoning in 2106. Despite positing itself as neutral, the Indonesian Republic had secretly conspired to undermine Japan through the sabotage of BulkProd exports, which led to the death of twenty million people within only a few weeks. Fearing for their lives and/or out of disillusionment, Japanese citizens began a frantic emigration to Korea. The military's attempt to enforce order led to dockyard butchering. Initially pinned on the Allies, the crisis enabled Ruchang to rally popular outrage and seize the offices of recently deceased civil servants; Ruchang was declared Crown Prince and heir apparent, dissolved the Diet and banned all parties.
With Japan's domestic situation on the verge of collapse, the Allies attempted to broker an end to the war, calling for the government's capitulation and the surrender of Ruchang to an international criminal court. Emboldened by international confusion surrounding the poison crisis and criticism of the terms of surrender, Japan refused to submit, deploying even more troops to the Chinese front.
The Japanese Tanks, including a "Takeshi Ruchang Tank" weighting 1,000 metric tons, and their huge army attempted to move forwards, only to find cities that had been evacuated by the civilian population and turned into fortresses. The countryside was similarly transformed and Japanese advances were negligible. With Japan’s forces focused in Mainland China, Japanese occupied Hainan was easily liberated by Chinese troops.
End of the WarEdit
With Japan's fighting capability on the verge of collapse by year's end and Ruchang stubbornly refusing to surrender, his brother Takeshi Shiro turned on him, provoking a brief but bloody civil war. Shiro executed Ruchang on 12 January 2107 as he attempted to flee the country, and the Japanese Empire unravelled soon after.