The landing started in at 09:00 o'clock in the morning. The Cossacks who patrolled at the beach were pushed back to the village of Järvenperä. The Swedish troops advanced slowly and the Russians reacted quickly, as they sent three companies from the Pernov (Pärnu) Musketeer Regiment [ru] supported by 2 cannons to oppose the advancing Swedes at Järvenperä. The Kronoberg Regiment[8] offensive caused the Russians to retreat. The Swedes had 4 men wounded on the first day of fighting (one mortally). The Russians had some killed and wounded but only one captured.
In the morning, the Swedes proceeded to advance in the direction of the village of Viiainen. There, Russian Lieutenant General Karl Gustav von Baggovut had built a defense line with a battalion of the Nevski Musketeer Regiment.[9] According to Baggovut's orders, they had to delay the progress of the Swedes, but the Swedes pushed the Russians back from their positions. Colonel Freiherr Gustaf Reinhold Boije af Gennäs was named as the commander of the Swedish battle forces. The Swedes had 10 or 12 killed, 71 wounded and 3 missing on the second day of fighting. The Russian loss in killed and wounded was significant, while 40 were captured.
During the night, Prince Pyotr Bagration brought sizable reinforcements to Baggovut. Bagration organized his offensive in three columns, two of which would enter the rear and Baggovut's would launch a frontal attack. Boije planned a two-pronged offensive for the Swedes. One Swedish force would attack from north of Viiainen to Puosta, while at the same time the Lagerbring force would strike the flank of Russian forces at Puosta through Haaroinen and Ranta. Because of the reinforcements, Baggovut had the initiative and he struck strongly and directly to Boije's main line of position while simultaneously starting a flank offensive via Ranta. Lagerbring's attack was stopped by the force of the Russian troops and he had to retreat. Boije found the situation hopeless and ordered a general retreat to the Helsinki village. They lost discipline after Grodno Hussars [ru] attacked. At the beach the situation was chaotic. The king had ordered all the gunboats to Kahiluoto, and so there were only defenseless troopships left. The loading of the ships happened in disarray under Russian fire and resulted in large losses. The Swedes had lost 45 killed, 176 wounded and 346 missing (of which more than 300 captured) on the third day of fighting.
In total, between 657 and 826 Swedes were lost in all three days. Russian general Paul van Suchtelen [ru] attested to 1,000 Russians and Swedes being killed in total; while 362 Swedes had been captured, along with their wagon train. Furthermore, five or 15 Swedish guns and one of their standards were captured. By their own accounts, the Russians had 120 killed, 352 wounded and 52 captured during the three days of fighting, or 400 men.
- Swedish command Staff; 1 wounded and 1 missing — 2
- Svea Life Guards (1 battalion); 9 killed, 20 wounded and 3 missing — 32
- Swedish Guard Regiment (1 battalion); 6 killed, 27 wounded and 3 missing — 36
- Finnish Guard Regiment (1 battalion); 13 killed, 25 wounded and 38 missing — 76
- Jägers (1 battalion, emerged from other regiments); 11 killed, 42 wounded and 4 missing — 57
- Kronoberg Infantry Regiment and auxiliary reserve (3 battalions; of which 1 reserve); 11 killed, 72 wounded and 145 missing — 228
- Västmanland auxiliary reserve (1 battalion); 2 killed, 48 wounded and 64 missing — 114
- Uppland auxiliary reserve (1 battalion); 4 killed, 7 wounded and 87 missing — 98
- Life Guards of Horse (2 squadrons); 3 missing
- Svea Artillery Regiment; 1 killed, 5 wounded and 1 missing — 7
- An additional 4 men were wounded from the Kronoberg and, or Svea Life Guard regiments. — 4
In total: less than 3,800 men (no more than 3,300 in the main battle on the 28th); 57 killed, 251 wounded and 349 missing (of which about 300 privates and 11 officers captured according to Russian records).
Sweden
Russian Empire