Key world news as of December 31, 2025, includes escalating Russia-Ukraine tensions, protests in Iran, U.S. military actions, and regional conflicts across Asia and Latin America.[1][2][3] Russia-Ukraine Conflict Russian drone strikes hit apartment buildings and the power grid in Odesa, Ukraine, injuring six people including children.[1][4] Ukrainian President Zelenskyy suggested U.S. President-elect Trump visit Ukraine…
