Making this its own post because it's interesting-- in Andor S1, Senator Mon Mothma is seen petitioning for the Empire to break a blockade of the planet Ghorman, which it is starving out in response to an organized protest by its people.
From the Rebel Alliance Sourcebook, written by Paul Murphy:
Despite their differences, Mothma and Organa worked closely together to keep Senator Palpatine from becoming President of the Re-public. When it became obvious that they would fail, Mothma began to discuss Revolution.
Organa was horrified.
Mon Mothma recalled some of those early conversations, the so-called "Cantham House Meetings":
*At first, Bail would not hear of it. He was aghast at the very idea of attempting to overthrow the government he had given his whole life to." She chuckles. "For a moment after I broached the subject, I thought he was going to have me arrested. It wasn't until the Ghorman Massacre that he turned around."
Ghorman is a small planet located in Sern Sector, just outside the Core Worlds. The citizens of Ghorman were staging a peaceful demonstration against new taxes; they staged a sit-in at the spaceport, blocking all of the port's landing pads. A Republic warship, arriving at the planet to collect the taxes, landed in spite of the citizens, killing dozens and wounding hundreds more. The commander in charge of the warship, one Captain Tarkin, was not prosecuted for the murders; in fact, he was promoted.
Mon Mothma continues. "After Ghorman, Bail realized that the Republic was dead. He began to use all of his influence and political skill to aid us, while still pretending to be against me on the floor of the Senate. He was on many influential committees — Finance, Appropriations, Intelligence Oversight — and he was able to funnel money, weapons, and, most importantly, information to us without anyone suspecting him.
"In fact, when 'Emperor' Palpatine decided to arrest me for treason, one of his lapdog Senators informed Bail beforehand. Bail, while pretending to gloat with the swine, sent one of his men to warn me. I got off-planet about two minutes ahead of the ISB agents."
The Ghorman Massacre has been the tipping point for the organization of the Rebel Alliance since 1994, but almost never actually mentioned on seen in EU material. But now its backbone stuff in Andor, and features as a critical moment in Rebels.