Contributions to pension scheme (social security) x-posted

If I contribute to the governemnt pension scheme while I am in England, I am ever eligible for that money if I only stay for a few years?

I also contributed to social security when I lived/worked in the states for 5 years. Do I ever get any of that back?

According to my knowledge, you can claim disability after 2 years of social security but must work 10 years to claim retirement benefits....

You will probably want to talk to the social security dept though for verification. I think it's also possible to blend it with CPP but i'm not sure....and i think you get less that way.