Which parts of this passage from Beowulf indicate the poem is about war and glory?

Lo! the Spear-Danes’ glory through splendid achievements
The folk-kings’ former fame we have heard of,
How princes displayed then their prowess-in-battle.
Oft Scyld the Scefing from scathers in numbers
From many a people their mead-benches tore.

Since first he found him friendless and wretched,
The earl had had terror: comfort he got for it,
Waxed ’neath the welkin, world-honor gained,
Till all his neighbors o’er sea were compelled to
Bow to his bidding and bring him their tribute:

An excellent atheling! After was borne him
A son and heir, young in his dwelling,
Whom God-Father sent to solace the people.
He had marked the misery malice had caused them,