Question

What are 'Bastions'?
Can anybody answer this question ​

Answer 1

Answer:

a projecting portion of a rampart or fortification that forms an irregular pentagon attached at the base to the main work. a fortified place. anything seen as preserving or protecting some quality, condition, etc.: a bastion of solitude; a bastion of democracy.

Answer 2

Answer:

walls which protects the fortress it are known as bastions