Graf wrote:
It's because, oddly as it sounds at a club founded by Catholics, Celtic and St. Pauli are both left-of-center clubs in the midst of overwhelming right-wing hooliganism threatening the football scene, even though it has died down a bit since the 1980's. The club owners announced this friendship at a meeting in London awhile ago. On the St. Pauli website, you can buy a scarf with one side St. Pauli and the other side Celtic.
By the way, it's my first post here, I'm Graf from the UK St. Pauli fans forum. I live in New York.
EDIT: It's kind of sad that FC Bayern Munich doesn't have a stronger friendship with St. Pauli. Not only have FC Bayern helped out St. Pauli when they needed money (organizing matches for basically nothing, just enough to cover travel), but historically, FC Bayern have been in a much more real leftist dillema than St. Pauli ever will be. FC Bayern used to be headed by a Jew in the 1930's, and the club refused to depose their leader or renounce support, and as a result, FC Bayern was put out of favor by the Nazi Party and shunned as "radicals". TSV 1860 München then came into favor, and was treated much better by the German government even after the war, allowing them to secure a spot in front of Bayern in the original Bundesliga. I'm not an FC Bayern fan by any means, but I would appreciate a more open friendship between the two clubs.
You're right in that the connection between the clubs is a political one, but Celtic PLC do not care about the St.Pauli connection at all. Except of course for the St.Pauli merchandise that they sell in the corner of the superstore, or 'half and half' scarf's that you speak of. Celtic are a non-political club... when it suits them! The connection is between the
fans 
We've never really had a right-wing' hooligan' problem in Scotland. The Celtic support is so large that we've never been in 'danger' at matches. The vast majority of casual firms - except the old school CSC (Celtic Soccer Crew) - don't really care about politics, and would still be fighting with each other regardless.
For me the connection is better described as both clubs supports being the dispossessed, marginalized and discriminated against in society. Wherever they go, the supports are targeted and abused for being different, and not conforming. When they leave the stadium the same happens, they work and live in exclusive environments. Oppression breeds resistance and more oppression, more resistance; and the resistance is Celtic and St.Pauli! Both clubs have similar fan histories and circumstance at some points through time and the connection between the clubs can't be described in one thread. It means a lot to many different people, for many different reasons, there are so many friendships and stories to be told! To anyone really wanting to know the 'truth': it's better to find it for yourself. Create your own Celtic-St.Pauli connection
As for Bayern, the Schickeria München (Bayern Ultras) were at the St.Pauli Antira tournament in May, but it's hard for teams from the same country to be friends... no matter how close the ties and histories of both. Such is the nature of football!
