Arkhangelsk 1553; two disappeared, and one ended up in the White Sea, eventually coming across the area of Arkhangelsk. Ivan the Terrible found out about this, and brokered a trade agreement with the ship's captain, Richard Chancellor. Trade privileges were granted to English merchants in 1555, leading to the founding of the Company of Merchant Adventurers, which began sending ships annually into the estuary of the Northern Dvina. Dutch merchants also started bringing their ships into the White Sea from the 1560s. Scottish and English merchants also traded in the 16th century; however, by the 17th century it was mainly the
Battle of Bolshie Ozerki of the intervention to involve American forces, though they successfully defended their camp from a Russian attack at Romanovka composed of forces that greatly outnumbered them two months later and inflicted hundreds of casualties during the Suchan Valley Campaign the following month. Allied forces began to withdraw rapidly from northern Russia shortly thereafter. Bolshie Ozerki was a small village situated between the port city of Onega and an important Allied position at Obozerskaya Station, along the Arkhangelsk-Vologda railroad. Because the port of the main Allied base at Arkhangelsk froze every winter, reinforcements had to be brought overland to the front