U.S. Secretary of State Marco Rubio is reportedly planning to skip next week's NATO foreign ministers meeting in Brussels, an unusual decision for America's top diplomat during a period of heightened geopolitical tension. According to two U.S. officials who spoke anonymously, Deputy Secretary of State Christopher Landau will attend in Rubio's place, though the reason for Rubio's expected absence remains unclear and could still change.

The timing of the likely no-show has raised concerns across Europe, as U.S., Ukrainian, and European officials continue to navigate major disagreements over President Donald Trump's proposal to end Russia's invasion of Ukraine. Diplomatic unease intensified after a leaked 28-point peace plan sparked fears that Kyiv could be pushed into accepting terms seen as overly favorable to Moscow.

While the State Department declined to comment directly on Rubio's attendance, a spokesperson emphasized that the NATO alliance has been "completely revitalized" under the Trump administration and noted Rubio's recent discussions with European leaders in Geneva. Another senior official dismissed concerns, arguing that Rubio has already met with NATO allies "dozens of times" and cannot be expected to attend every gathering.

NATO officials downplayed the situation, suggesting it is not unusual for foreign ministers to miss meetings. Still, Rubio's absence comes as Washington faces growing scrutiny over its long-term commitment to European security. Although Trump reaffirmed support for NATO at a leaders' summit in June, he has repeatedly questioned the alliance's relevance and criticized member states for inadequate defense spending.

Landau, who will represent the United States in Brussels, had earlier questioned NATO's necessity in a now-deleted post on social media, adding further uncertainty to Washington's approach. His attendance coincides with a turbulent moment for Ukraine, highlighted by the resignation of President Volodymyr Zelenskiy's chief of staff Andriy Yermak after an anti-corruption raid on his home.

Rubio's potential absence risks amplifying concerns among European allies who are already wary of being sidelined in negotiations that could reshape the future of the war and the security landscape of the region.