Loyal North Lancashire Regiment.
As they were stationed in India at Bangalore, they seem to have worn the standard tropical issue kit for British troops.
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Three battalions of the Regiment were also issued with Tropical uniforms for overseas service so soldiers photographed in tropical uniform are almost certainly from the 2nd, 6th or 1/12th battalions. The 2nd Battalion started the war in Bangalore in Southern India before sailing to East Africa. They had spells in South Africa and Egypt before finishing the war on the Western Front. Here, the scouts of the 2nd Battalion pose for a photo in Poona in 1913 just before they moved to Bangalore. By the time they went to East Africa they had been reequipped with 1908 pattern Webbing.
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A Company, 2nd Battalion, Loyal North Lancashire Regiment at Poona, India