"Fierce loves and faithless wars"—I am not sure

If this be the right reading—'t is no matter;

The fact's about the same, I am secure;

I sing them both, and am about to batter

A town which did a famous siege endure,

And was beleaguered both by land and water

By Souvaroff,[369] or Anglicè Suwarrow,

Who loved blood as an alderman loves marrow.