Post #2 – D Day.
Decision Day. D-Day, June 6, 1944.
https://www.history.com/news/why-was-it-called-d-day

The D-Day landing — when, on June 6, 1944, more than 160,000 Allied troops landed on the beaches of Normandy, France, to begin the operation that would liberate Western Europe from Nazi Germany’s control — was one of the most complicated military feats in history.

D (letter 4) – decision, discrimination (Sanskrit – Viveka) (1st step for student, discerning real/unreal, spirit/matter, etc.), discernment, deliberation, determination, dharma, detachment, dispassion, death, Dweller on the Threshold, discipline, Disciple, Discipleship.

Dalet is the 4th letter in the Hebrew Alphabet – the four mother, four questions, four elements of creation, four winds, four created worlds, four cups, four expressions of redemption.