Christopher Pike was the first Star Trek captain, even if fans didn't meet him until the end of Season 1 of The Original Series in the two-part "Menagerie." Fans are seeing more of his time in command of the USS Enterprise on Strange New Worlds. However, the most fateful and defining character moment for Captain Pike came during his stint on Star Trek: Discovery when he learned what his future held. If the first series in the third wave of the franchise played fast-and-loose with Starfleet ideals, this moment with Pike is a message from the storytellers that morality is alive and well in their show.
Source:https://www.cbr.com/captain-pike-most-fateful-moment-star-trek-discovery/