Sweden and Finland came as a pack so lets talk about both of them. Benefits: It completely neutralizes the Russian Baltic Fleet. The only railway line suppor

Sweden and Finland came as a pack so lets talk about both of them. Benefits: It completely neutralizes the Russian Baltic Fleet. The only railway line supporting Murmansk is less than 200km beyond the finnish border, which means the Nordic Fleet is also compromised. Potential disadvantages of additional members are added political instability as can be seen with Hungary and Turkey. There is little chance of this with both countries. Basically you dont defend members, you defend borders and adding Finland and Sweden to the pact makes for a far easier and better developed front. The Finns have been building bunkers and training their population for the next Russian invasion since WW2. Having Finland as a member strengthens the position of the Baltics, who are threatened by the Suwalki corridor. Basically it strengthens and stabilizes the northern border to Russia/Belarus.