The Young Men's Christian Association (YMCA) and Young Women's Christian Association (YWCA) are 2 organisations founded to promote the betterment of people's life based on christian values. Although the 2 organisation have had some difference in goals and completely separate organisational structure, they have collaborated in Australia on a number of occasion such as World War 2.
Between 1945-1952, japan was under foreign occupation by US and Commonwealth, the later being commanded by british officers. As fraternization was forbiden and army entertainment facility lacking, it fell to NGOs such as the YMCA/YWCA to provide recreation.
Although not a militarized organisation, personnel of the YMCA/YWCA have worn uniforms of various type over the years mainly for the sake of identification. The image of the epaulette slide below dates from the late 1940s and is based on one donated to the Australian War Memorial although not information about the rank it represented is currently available.