Finland had declared independence from what was the former Russian Empire, at that time embroiled in the Russian Civil War, on 6 December 1917. At the time of the declaration of independence, monarchists were a minority in the Finnish Parliament, and Finland was declared a republic. A civil war followed, and afterwards, while the pro-republic Social Democratic Party was excluded from the Parliament and before a new constitution was adopted, Frederick was elected to the throne of Finland on 9 October 1918.
...says wiki and
I'm too lazy to translate the local press 
actually, here it is:
""Finland never experienced a civil war", said our prime minister, and - nobody blinked.
Contrary to mr. Milanović's liberal belief, Finland indeed experienced a civil war, and a bloody one at that!
In 5 months of war, about 37 thousand people died out of a total population of 3 million.
Ergo, more than 1% of the population! Several generations were wiped out. As much as 16% of the victims, almost 16 thousand were between 14 and 20 years of age! Doesn't sound very peaceful.
Seeing that Milanović doesn't know all this, here's a quick reminder. The Reds and Whites fought in the first half of 1918, somewhat like in Russia. The Germans helped the Whites, and there was fighting for Helsinki itself. In the Finnish civil war, both sides commited countless attrocities described by history as the Red and White terror. Even the minors in the opposing armies were executed."
although this one (actually most of the articles lol) should be read with a reserve
