Agamemnon reveals how he has deceived Clytaemnestra into sending Iphigenia to his care. He has told his family that Achilles wishes to marry his daughter, and will not leave for war unwed.
Subtitles in this scene read:
I wrote to my wife to send the girl. The pretext? Marriage with Achilles. I sang his praises. I said he wouldn't sail unless he married... ... a bride of our blood.