The Battle of Revolax () took place on 27 April 1808 at Revonlahti, (now part of Siikajoki) in Northern Ostrobothnia, Finland, when the Swedish supreme commander Wilhelm Mauritz Klingspor and the Savolax brigade under Colonel Johan Adam Cronstedt, a total of about 2,250 Swedes surprised an isolated Russian column of about 1,700 men under Major General Michail Leontievich Bulatov. The Russians were surrounded and tried to cut their way through but failed and the Russian general Bulatov was taken prisoner by the Swedes. This, and the preceding battle of Siikajoki nine days earlier, are considered very important events since they are the first Swedish victories after about 2 months of planned retreat. The next battle took place at Pulkkila on 1 May. The summer offensive begins The Swedish commander Klingspor continued his retreat towards Oulu after the Swedish victory at the Battle of Siikajoki. They were closely followed by the Russians. A Russian fore, commanded by Bulatov, had set camp at the village of Revonlahti. Cronstedt prepared an assault to drive them away. He led a force of some 1,800 men through the night of 26 and 27 April. The Swedes could hear the sound of musket fire to the north, where Adlercreutz were fighting against the forward Russian unit which had been advancing on him. However Adlercreutz managed to stop the advance. Cronstedt and his 4th Brigade prepared themselves for the battles that were to be fought the next day. Bulatov and his Russian troops were entrenched inside the village. The Russian units consisted also of the Mogilev Regiment and the Perm Regiment. The Russians had three guns. In the morning of 27 April the Swedish attacked with two equally strong columns: the right column was led by Gustav Aminoff. It consisted of two battalions from the Savolax Infantry Regiment, the third battalion from the Savolax Jaeger Regiment, the second battalion of the Carelian Jaeger Corps and two 3-pound guns; the left column was led by Lieutenant Colonel Adolf Ludwig Christiern and consisted of two battalions from the Savolax Infantry Regiment, the first battalion from the Savolax Jaegar Regiment, the first battalion from the Carelian Jaeger Corps, and two 3-pounder guns. The right column managed to sweep away all the Russian resistance and were advancing along the river, towards the village. At the same time, the left column prepared its troops to assault the vicarage, where Bulatov had set