Hearts of Iron 2 - I cannot make alliances

[xristosQ]

I am playing as Greece and I believe that it should be I wise idea to join an alliance after some months...
But, when I try p.e to join Alies, it says that As a democratic nation a should have a more interventionism to join them and when I try p.e to make a military alliance with Turkey it says to me the same. What I have to do?

[Heinz Guderian]

raise your interventionalism every year. also, when the Italians attack (after they go axis) it will allow you to join the Allies.

[xristosQ]

Thank you.