What Am I Riddles

Question: I can be shared by many or spread to few, I am as fragile as silk yet as strong as steel. Wars have been fought in my name, generations defined by me. What am I?

Question: What force and strength cannot get through, I with a gentle touch can do, And many in the street would stand, Were I not a friend at hand.

Question: Surrounded by green, surrounding white.
Inside is red, holding many black babies.

What is it?

Question: To look cool wrap me around your head.
Remove a letter and eat me instead.

What am I?

Question: What type of cheese is made backwards?