Finland has separated from Russia but is now in the midst of a civil war between the socialist Reds and conservative Whites. The Reds look to Soviet Russia for inspiration support while the Whites have negotiated with Germany for assistance.
The initiative has now passed from the Reds to the Whites. Under the command of Mannerheim, formerly a general in the Russian army, the Whites have moved against Tampere, a mill town known as the Manchester of the North. The prevalence of radical ideas among the industrial workers here makes Tampere a centre of Red sentiment. For the Whites, Victory in Tampere would break the back of their socialist enemies.
Having surrounded Tampere, the White Guard now attempt to storm the town. The Reds however put up more resistance than expected; although the Whites make gains, they are unable to reach the town centre and suffer heavy casualties in the process. So for now they abandon attempts to take the Tampere by storm, instead softening it up with artillery fire.
Red Guards (Tampere sodan 1918 näyttämönä (The 1918 Battle of Tampere)) this Finnish language site has some stunning if grim photographs from Tampere in 1918
Civil War map (Wikipedia: Finnish Civil War)