Sorry for writing in English. I have no Hebrew configuration here.

I live in Europe and the issue of "how Israel is different then
country X" is very popular in the conversations I have with the
locals here.

For some times already I used the argument that there has never been a
war between two democracies. Israel is a democracy, so it turned
out to be very good argument in those discussions - there are wars in
the middle east because other countries are not democratic. So not
because of Israel. Therefore it is good that Israel can protect
itself. On the other hand it is dangerous that dictators will hold
mass destruction weapons, because they are prone-wars...

Now, my question is if I am right to say that there were no wars
between democracies. I cannot recall any war between two democracies,
but I am no historian, and till today I could not find the answer. Is
it true?