Iphigenia in Aulis: Section 1 translation

There were born to Leda, daughter of Thestius, three maidens,
Phoebe, my wife Clytemnestra,
and Helen. The young men who were considered the most
prosperous in Greece came as her suitors.
The matter was unmanageable for her father Tyndareus,
whether to give her away or not, how he might best
take hold of destiny. And this occurred to him:
that the suitors should take oaths and join their
right hands with each other, and through burnt-sacrifices
pour libations and swear this.
That they should assist the man whose wife the daughter of Tyndareus
becomes, if someone should take her from his home,
go off and drive her keeper out of the marriage bed,
and march against and destroy the city,
Greek or barbarian city alike, with arms.