Watch live: NATO's Mark Rutte gives remarks after meeting with Trump

NATO Secretary General Mark Rutte will deliver a public address on Thursday morning in Washington, D.C., to discuss pressing threats facing the military alliance. This speech follows his critical meeting with U.S. President Donald Trump at the White House on Wednesday, a session held against the backdrop of a fragile ceasefire in the Middle East and ongoing concerns about America's commitment to the transatlantic pact. The meeting and subsequent remarks come at a pivotal moment, as President Trump and Secretary of State Marco Rubio have publicly questioned the value of U.S. membership in NATO, even floating the possibility of withdrawal. The core agenda for Rutte's remarks is expected to focus on reinforcing NATO's unity and strategic purpose in an era of renewed geopolitical competition. He is likely to address the dual challenges of Russian aggression in Europe and the instability in the Middle East, emphasizing the alliance's role in collective defense. The Secretary General will also aim to publicly articulate the mutual benefits of the U.S.-NATO relationship, seeking to counter the isolationist rhetoric emanating from parts of the Trump administration and reassure other member states of America's enduring partnership. This diplomatic engagement underscores a significant tension within Western security architecture. President Trump's longstanding skepticism of multilateral alliances has placed NATO's future operational and financial cohesion in question. Rutte's mission is therefore one of high-stakes diplomacy: to navigate personal diplomacy with the U.S. President while upholding the principles of a 31-nation alliance. His public comments will be scrutinized for any signals regarding U.S. assurances or shifts in policy following the private talks, with European capitals anxiously watching for clues about the durability of American security guarantees.