Oren was the codename assigned to a Baltic-German double agent

Double agent

A double agent, commonly abbreviated referral of double secret agent, is a counterintelligence term used to designate an employee of a secret service or organization, whose primary aim is to spy on the target organization, but who in fact is a member of that same target organization oneself. They...

 in South-East Asia by British Intelligence during World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

. Although his true identity is unknown, he is believed to be a man of Swedish descent. Orens intelligence passed on to the British Consul in Batavia, Beckett, along with the intelligence passed on by another German agent Vincent Kraft

Vincent Kraft

Vincent Kraft was a German double agent in South-East Asia during World War I who was extensively involved in British counter-intelligence in the Hindu-German Conspiracy. Kraft was sent to South-East Asia during the war by the German high command as a part of the larger Indo-German Conspiracy and...

, were instrumental in uncovering parts of the Hindu-German Conspiracy, especially the plans to ship arms to India on board the SS Maverick

SS Maverick

SS Maverick was an oil tanker built in 1890 for the Standard Oil of New York, later Mobil Oil. After the ship had changed hands sometime between 1910 and 1915, it was used during World War I as part of the Hindu–German Conspiracy to foment rebellion in India and overthrow the British Raj...

in June 1915. Oren also passed on information on the operations of Jatindranath Mukherjee's agent Narendranath Bhattacharya with German ministers in South-East Asia, and of Jatin's plans for revolt

Christmas Day Plot

The Christmas Day plot was a conspiracy made by the Indian revolutionary movement to initiate an insurrection in Bengal in British India during World War I with German arms and support...

in the Indian Army in Bengal in August 1915.

Based on Orens intelligence, the Maverick was seized, while in India, police destroyed the underground movement in Calcutta as an unaware Jatin proceeded according to plan to the Bay of Bengal coast in Balasore. He was followed there by Indian police and on 9 September 1915, he and a group of five revolutionaries armed with Mauser pistols made a last stand on the banks of the river Burha Balang. Seriously wounded in a gun battle that lasted seventy five minutes, Jatin died the next day in the town of Balasore. Oren's true identity was never disclosed by Beckett.