Fortinbras is determined to take back lands his father lost in
battle—including Denmark—and marches relentlessly across
Europe as he sets his eyes on lands in Poland and beyond.
Hamlet overhears these murmurings of Fortinbras’s campaign,
and though he never comes face-to-face with his foil and
opposite, the audience (and Hamlet himself) recognize
Fortinbras’s decisive action on his late father’s behalf as all that
Hamlet is unable to bring himself to do.