Ukrainian President Volodymyr Zelensky is set to meet US President Trump in Washington to sign a preliminary agreement granting the US access to Ukraine's rare earth minerals. While Zelensky hopes this will lead to further deals, no security guarantees from the US have been confirmed. The agreement includes establishing an investment fund for Ukraine's reconstruction, with Ukraine contributing 50% of future proceeds from its mineral resources. Despite the potential benefits, Zelensky emphasizes the need for security guarantees, which Trump suggests should be the responsibility of Europe. The deal has faced criticism regarding its terms and implications for Ukraine's sovereignty.