The Anglo-Scottish War was a conflict fought primarily in Great Britain. It was caused by the Scottish Invasion of Mann, and resulted in the expansion of the United Kingdom to the entirety of Great Britain and Man.
After the Great Nuclear War, a Nationalist Republic of Scotland was declared by a group of Nationalists in Southern Scotland. Driving up popular support, but 1984 it covered almost the entirety of Scotland. After contact was made with the Northern English Council in 1980, relations were immediately sour. Border incursions were repeatedly made, reaching a height in 1983 when a Scottish unit opened fire upon a NEC Militia. A bitter border war was waged for two years, until a ceasefire was established in 1985, and a de-militarised zone created along Hadrian's Wall. However, Scotland soon began deporting thousands of English south of the border, and began re-militarising. With contact with the BPA, and its subsequent reunification with NEC into a new United Kingdom, Scottish military spending increased two-fold, with many former British military bases and airfields renovated. Old WW2 era tanks were restored, and many training operations were made in the Hebrides.
At daybreak on the 31st January 1993, a Scottish task force landed on Mann, securing the Island within four hours. Concurrently, a second, larger force entered the British city of Berwick-upon-Tweed, and seized the town. As sporadic and contradictory reports reached Birmingham, British Prime Minister Charles Kennedy organised an Emergency Cabinet Meeting, called the Scottish Ambassador, and prepared for a State of Emergency to be called in the North. However, by nightfall it became apparent that the Scottish Ambassador and his embassy had evacuated already. Fearing the worst, Kennedy issued a State-of-Emergency in the North, and issued an Ultimatum to Scotland to withdraw their troops from England and Mann by daybreak or face war. With no response, a Declaration of War was signed by Kennedy and the Queen, and the British Cabinet met in Cabinet Office Briefing Room A (COBRA), the British Emergency Response Committee. The Army was mobilised and units moved to the North. However, cut off guard, the Scottish forces invaded Carlisle, and by the end of February were almost at York
British forces began to form a defensive line from the South of Cumbria up to Berwick, and on the 2nd March initiated a counter offensive. British air superiority proved key, but Scottish forces still held back. Despite this, on the 29th March British forces pushed the Scots back to Carlisle, which they had heavily fortified. Infantry and commanders formed two strongholds in Carlisle Castle and RAF Carlisle, whilst some infantry, artillery and limited armour were based around the city. On the 1st April the Battle of Carlisle began, and lasted 20 days, in which the Castle was greatly damaged and the Scots were inflicted many losses. The counterattack lasted until the 3rd of June, when Scots had retreated, using scorched earth tactics, to the pre-war border. Despite this, the Scots showed no signs of responding to a ceasefire, and of the 5th British units moved into Scottish Territory.
British forces continued to move through Southern Scotland throughout 1993, and by June 1994 had reached the former Antonine Wall, reaching from the Firth of Forth, across the Central Belt, to the Firth of Clyde, and forces prepared for the Liberation of the Isle of Man. However, on the 17th March Scottish Forces landed in Angelsey, Wales, apparently to force the opening of a second front. Wales, however, had been preparing for invasion, and within a week had repelled the invaders, and met with British leaders. It was agreed to increase Anglo-Welsh cooperation, and a joint invasion of Mann was initiated in June.
By 1996 the main bulk of fighting was complete, with the Lowlands, Inverness and the Hebrides under British Control. However, Guerrilla fighting continued until 1998, when the entirety of Scotland was admitted to the United Kingdom as a constituent country.
The Welsh-British cooperation helped pave the way for the 2000 reunification, and Manx Islanders immediately chose to rejoin the UK, but as a constituent nation. Scotland, whilst still showing nationalist leanings, has on the whole been pacified as part of the United Kingdom