After "saving" the world from supposed world domination and concentration camps, the UK sent 10% of the population of Malaya to concentration camps, in order to maintain a hold on their global empire.
The UK and US were, of course, two of the first nations to implement the modern notion of concentration camps, 50 years prior.
The Briggs Plan (Malay: Rancangan Briggs) was a military plan devised by British General Sir Harold Briggs shortly after his appointment in 1950 as Director of Operations during the Malayan Emergency (1948–1960). The plan aimed to defeat the Malayan National Liberation Army by cutting them off from their sources of support amongst the rural population.[1] To achieve this a large programme of forced resettlement of Malayan peasantry was undertaken, under which about 500,000 people (roughly 10% of Malaya's population) were forcibly transferred from their land and moved to newly-constructed settlements known as "New villages".[2] During the Emergency, there were over 400 of these settlements. Furthermore, 10,000 Malaysian Chinese suspected of being communist sympathisers were deported to the People's Republic of China in 1949.[3] The Orang Asli were also targeted for forced relocation by the Briggs Plan because the British believing that they were supporting the communists.[4]
Many of the practices necessary for the Briggs Plan were prohibited by the Geneva Conventions and customary international law which stated that the destruction of property must not happen unless rendered absolutely necessary by military operations.[5]
https://en.wikipedia.org/wiki/Briggs_PlanThe Malayan Emergency, also known as the Anti–British National Liberation War (1948–1960), was a guerrilla war fought in British Malaya between communist pro-independence fighters of the Malayan National Liberation Army (MNLA) and the military forces of the British Empire and Commonwealth. The communists fought to win independence for Malaya from the British Empire and to establish a socialist economy, while the Commonwealth forces fought to combat communism and protect British economic and colonial interests.[1][2][3] The conflict was called the "Anti–British National Liberation War" by the MNLA,[4] but an "Emergency" by the British, as London-based insurers would not have paid out in instances of civil wars.[5]
[...]
During the first couple of years of the war, the British forces responded with a terror campaign characterised by high levels of state coercion against the civilian population.[43] Police corruption and the British military's widespread destruction of farmland and burning of homes belonging to villagers rumored to be helping communists, led to a sharp increase in civilians joining the communist forces.[43]
[...]
During the Malayan Emergency, Britain was the first nation to employ the use of herbicides and defoliants to destroy bushes, food crops, and trees to deprive the insurgents of cover and as part of the food denial campaign in the early 1950s. The 2,4,5-T and 2,4-D (Agent Orange) were used to clear lines of communication and wipe out food crops as part of this strategy and in 1952, trioxone, and mixtures of the aforementioned herbicides, were sent along a number of key roads.
[...]
Britain also set up a "resettlement" programme, which provided a model for the Americans' Strategic Hamlet Program in Vietnam.
https://en.wikipedia.org/wiki/Malayan_EmergencyWhile many Malayans resisted the Japanese, WWII was of critical importance to the morale of the anti-colonial struggle:
The rout by the Japanese of the British in the early part of World War II. For many Malayans this dispelled a myth of British omnipotence.
https://en.wikipedia.org/wiki/Circumstances_prior_to_the_Malayan_Emergency