Before the ghost of Hamlet's father appears, the three men, Marcellus, Bernando, and Horatio are talking about how the Norwegian prince Fortinbras is raising an army to attack Denmark and retake the land that Hamlet's father had taken from his father when he conquered them. Now that Hamlet Sr. is dead, there is no reason for him to withhold from attacking Denmark and taking what is his by right.
To communicate large amounts of information quickly Fam
And like a thunderbolt he falls": It's not clear why the eagle falls in the last line. It may be because he falls from power, it may be because his life is meaningless
to emphasize how free the camper is to do as he pleases