Poland scrambled fighter jets in its airspace and closed two airports Wednesday morning as Russia carried out a combined missile and drone attack across most of Ukraine.

Ukraine said it had successfully struck targets in Russia using U.S.-supplied ATACMS missiles, ending a months-long absence of the powerful weapon from the battlefield. In a statement shared on Facebook, the General Staff of the Armed Forces of Ukraine called it "an iconic event that emphasizes Ukraine's unwavering devotion to its sovereignty."

Ukraine has not previously stated openly that it uses the advanced U.S.-provided ballistic missile systems on targets inside Russia.

Elsewhere, the president of Finland warned that a ceasefire in Ukraine is unlikely before the spring and urged European allies to keep up support.

Ukrainian President Volodymyr Zelenskyy plans to visit Turkey this week to revive talks on ending Russia's invasion, which began nearly four years ago.

A full-scale invasion of Poland, in the manner Russia invaded Ukraine, is rather not viable, given Russia's current military capacities, Poland's military build-up and the collective defense guarantees of NATO membership, Michnik said, "however, this reality must not diminish Poland’s ongoing preparation."

The Trump administration has been secretly formulating a new plan to end the war in Ukraine in consultation with Russia, Axios reported Tuesday, citing U.S. and Russian officials.

President Donald Trump started his campaign for Europe in general and Germany in particular to spend more of their budgets on defense during his first term, and it's starting to pay off in the economic engine of Europe, the Federal Republic of Germany.