What literary techniques are used in lines 76 - 78 ? What effect does this have? In the raven

Highlight all instances of parallel structure. there is no longer any room for hope. if we wish to be free—if we mean to preserve inviolate those inestimable privileges for which we have been so long contending—if we mean not basely to abandon the noble struggle in which we have been so long engaged, and which we have pledged ourselves never to abandon until the glorious object of our contest shall be obtained—we must fight!

What other theme is addressed in the passage?

Which statement is mostly clearly a claim of policy