In the past, I wrote about transits in divisional charts once. In particular, I talked about Rudramsa transits from the natal rasi charts of nations to see mass deaths.
In our tradition, we believe that Rudramsa (D-11) shows death and destruction. I have personally seen that transit of planets in divisions also matters.
I just want to give an example.
Sun, Mars and Ketu were transiting in a jala rasi (Scorpio) in D-11 on Dec 26, 2004. Scorpio happens to be a maraka rasi in the natal rasi charts of India and Sri Lanka (7th for India and 2nd for Sri Lanka).
As an another example, consider the morning of September 11, 2001. Venus, Mars and Saturn were transiting in Libra (an airy sign) in D-11 then. Venus afflicted by malefics can show destruction using vehicles. Libra is a maraka sthana from lagna in natal rasi chart if you use the Karve-Rao chart of USA.
If the maraka sthanas or any sensitive houses in the natal rasi chart of a nation are transited, in D-11, by a conglomeration of planets including evil planets, a bad event resulting in mass deaths seems to be a possibility.
As usual, the purpose of this small note is to inspire someone to take this up for a detailed research!
May Jupiter's light shine on us,