Thousands Protest Outside Israel's Parliament Over Netanyahu's Push For Contentious Judicial Overhaul. SEE PICS

Thousands of Israelis marched on the country's parliament on Monday, despite warnings that PM Netanyahu's intention to undermine the judiciary risked plunging the country into "social collapse."

Israel Protest.

Tens of thousands of Israelis demonstrated outside the parliament building Monday, flying flags, blowing horns, and yelling "democracy" and "no to tyranny" as Prime Minister Benjamin Netanyahu's administration formally unveiled a disputed proposal to alter the country's judicial system.(Source: Getty)

It was the biggest demonstration outside the Knesset in years, reflecting the plan's deep differences. (Source: Getty)

The planned reforms have sparked weeks of huge protests, elicited opposition from powerful business executives and retired military personnel, and even caused President Joe Biden to issue a statement of concern. (Source: Getty)

Protesters arrived from all around the nation. Organizers estimated that up to 100,000 people attended, including female LGBTQ activists and opposition party leaders addressing the throng.(Source: Getty)

Thousands of people arrived in Jerusalem on crowded trains, screaming "democracy," clapping and whistling, and waving the national flag as they ascended escalators at the city's main railway station. (Source: Getty)

Hundreds more others protested at Jerusalem's Western Wall, the holiest site for Jewish prayer, before marching to the Knesset. (Source: Getty)