Scenario: War of 2016

The War of 2016 (also known as the Second Korean War) is 1 month long conflict between the two rivals North and South Korea.

Cause
Following the appearance of North Korean soldiers marching in South Korean territory without authorization and the killing of an Australian tourist by the North Korean soldiers claiming to have assaulted them. Lacking evidence and the due to uniformed soldiers being in South Korean territory caused South Korea to apprehend the soldiers and questioned them for motives. The North Korean soldiers did not respond and were to be taken to caught, but Supreme Leader Kim Jong-un believed that South Korea unlawfully arrested the soldiers and demanded their release, but 10 eye witnesses came forward and told that the tourist did not assault the soldiers and that Kim is looking for a reason to attack and take Seoul. The witnesses revealed themselves to be North Koreans, but they wish to join the South Korea believing that Kim is a false leader and prophet. Kim threatens the South Koreans and tries to make them surrender soldiers by sending his personal lawyers down, but the South Korea refuses to give them up.

An Artillery barrage hits the streets of Ch'unch'on killing several citizens including 12 American tourists and 1 Australian on leave soldier. South Korea speaks with Australia and the US telling them that Korea is warzone again and that all tourism is banned to all nations. They request aid from America and Australia, and they agree to deploy soldiers.

Initial Rejection from the UK
South Korea also request support from the United Kingdom, but rejected due to having no cause to enter the war themselves. This caused a stir between the two countries and its current allies. Australia especially reacted badly due to the head of the Commonwealth refusing to help Australia, and a cold responsible saying that "None our citizens are killed or cities are attacked, so we have no cause to enter the fray." Leaving the Australians believing that the UK doesn't believe the citizens of Australia are a concern to them in such situations. After some persuasion from the US, Australia dropped the Union Jack from their flag and replaced it with an Eagle, including changing the insignias of the ranks of Warrant Officer Class 02, Major, Flight Sergeant and all other ranks and militaries that have a crown part of it to replacing it with a Crow. The UK treated the Australian's move of full independency as a tantrum and did not acknowledge it, despite being acknowledged by the UN, Asia, Africa, Eastern Europe, Central Europe and all except the UK Western Europe. By June 29th the UK finally agreed to enter, but by the time they were ready the conflict was already over, but still didn't recognise the Independency of Australia.