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Brazil's Supreme Federal Court rules that Indigenous land rights constitute unamendable constitutional
Russo-Ukrainian war — Brazil's Supreme Federal Court rules that Indigenous land rights constitute unamendable constitutional guarantees, thereby blocking congressional efforts to restrict the recognitio

Context: Russo-Ukrainian war.
Brazil's Supreme Federal Court rules that Indigenous land rights constitute unamendable constitutional guarantees, thereby blocking congressional efforts to restrict the recognition of Indigenous territories and reinforcing existing protections despite pending legislative opposition. [https://www.reuters.com/world/brazil-supreme-court-affirms-indigenous-land-rights-defying-congress-2025-12-17/ (Reuters)]
Event summary via Wikipedia Current Events (2025-12-17).