03. Ulkachtem Luchem 5734 (1st of Hemshach of 3).

03. Ulkachtem Luchem 5734 (1st of Hemshach of 3).
This ma’amar was said days into the Yom Kippur war, which you can feel in the Ma’amar.
What the Rebbe does here, is use Torah to argue (in affect) that [the Mitzvos of] Sukkos doesn’t start on the 15th of Tishrei, but right after Yom Kippur.
And as such, the הללו את השם כל גויים שבחוהו כל העומים כי גבר עלינו חסדו also starts right after Yom Kippur (before the 70 cows are being brought actually during the week of Sukkos). So the angels of the 70 nations are indebted to, and concerned with Yidden.
They, in turn, influence the physical nations down here to advocate for and protect the Jewish people, even before Sikkos begins.
The idea is to use Torah to affect a change in the world for good (for Yidden); something really only a Rebbe can do.