Prince Harry, Meghan Markle Attack Royal Family in New Trailer for Documentary

A new trailer for Prince Harry and Meghan Markle's documentary has dropped, and it's clear the couple isn't holding back in taking some serious shots at the royal family.

Netflix released the new preview for "Harry & Meghan" Monday morning, showing more of the drama that'll be unveiled starting this week ... and Harry's calling out the "hierarchy of the family" -- claiming people inside his camp were leaking stories about him and Meghan.

Meghan claims everything changed after she married into the fam ... with one person talking about "a war against Meghan" -- while another claiming the drama was all rooted in hatred and racism.

Harry even talks about not wanting "history to repeat itself," while flashes of paparazzi swarm their car -- before showing shots of Princess Diana dealing with the same thing.

As we reported, Harry and Meghan -- who now live in the U.S. -- were stripped of their private security during visits to the U.K. back in July ... Harry claimed it wasn't safe for him, Meghan or their 2 kids because it's just too dangerous without security help.

Harry ends the trailer, saying no one knows the "full truth" except for them ... and we're only days away from finding out what that is.