Have you actually read the transcript of the speech or are you simply going by news reports?
If you have not read the transcript it is available
here.
A second
link with the greek characters included is found here.
It seems that there are two possible directions that can be taken, one relating to the speech itself, the other related to the speech as perceived. You may want to pick one of those and explain why you wish to explore that aspect.
Edited by AdminJar, : add second link