Like the last time when Russians tried to conquer Finland. They sent 20 thousand men to Finland who had only 4, which makes it 5 Russians for every Finnish soldiers. The results? Russians lost 3000 vs only 274 dead  and 445 injured on the Finnish side. Nowadays with the modern equipment that Finland has (over 100 Leopard 2 tanks and almost 25 thousand men), they are capable of defending themselves against the rusty Soviet-made crap that Russians are sending to battle.