In Lisbon this week, the ancient question of alliance and autonomy took the form of a fighter jet. Secretary of State Marco Rubio visited Portugal to advocate for the F-35 as Lisbon weighs replacing its aging F-16 fleet — a procurement decision that carries weight far beyond its price tag. The choice Portugal makes will quietly answer a deeper question: whether European NATO allies see their future as integrated partners in an American-led defense architecture, or as nations seeking a more independent path.
U.S. Pushes F-35 Fighter Jets as Portugal Considers F-16 Replacement
The choice Portugal makes will say something about how it sees its role in NATO
Mark
So Rubio went to Portugal to sell them fighter jets? That seems like a job for a defense contractor, not the Secretary of State.
Mimi
It's both. Yes, there's a commercial interest—the F-35 is worth billions in sales. But Rubio's visit was also about signaling that this is a strategic priority for the U.S. government. When the Secretary of State shows up to talk about a weapons purchase, it carries weight.
Luke
But the reporting doesn't actually say Rubio explicitly pitched the F-35 to Portugal. It says the U.S. is "actively promoting" it and that Rubio visited. Those are two separate things. Did he sit down with Portuguese officials and say "buy the F-35"?
Mimi
The reporting suggests that's the context of the visit, but you're right—we don't have a direct quote or a named meeting where that happened. The inference is there, but it's not nailed down.
Mark
What are the actual alternatives Portugal is considering? The reporting mentions "other options" but doesn't name them.
Mimi
That's the gap. We know Portugal is looking at replacements for the F-16, and we know the U.S. is pushing the F-35, but the reporting doesn't specify what other aircraft are in the running. European fighters, maybe. Other American systems. But it's not spelled out.
Luke
And we don't know the timeline either. When does Portugal need to decide? Is this urgent or is this a years-long process? That changes the whole story.
Mark
Why does it matter so much to the U.S. what Portugal buys?
Mimi
NATO standardization. If everyone flies the same aircraft, training is easier, logistics are simpler, interoperability is automatic. Plus, it locks allies into American supply chains and deepens the military relationship.
Luke
That's true, but the reporting doesn't actually explain the strategic rationale. It just says the U.S. is pushing. A reader might wonder: is this about genuine alliance strength, or is it about American defense contractors wanting sales?
Mark
Both, probably.
Luke
Probably. But the reporting doesn't help us separate those motivations.
Le Pouls
- Portugal's F-16s are aging out, and the window to choose a successor is narrowing — making this one of the most consequential defense decisions Lisbon has faced in decades.
- Rubio's visit injected direct American pressure into the process, framing the F-35 pitch as alliance solidarity while the subtext pointed toward procurement leverage.
- At roughly $130 million per aircraft — plus decades of maintenance, training, and supply-chain dependence — the F-35 commitment would reshape Portugal's defense budget and industrial ties for a generation.
- Portugal is keeping other options on the table, including European-made fighters, signaling either genuine hesitation or a deliberate bid to preserve negotiating power.
- The outcome will ripple outward: a Portuguese F-35 purchase could accelerate NATO equipment standardization and pressure other smaller European allies to follow suit.
In Lisbon this week, the ancient question of alliance and autonomy took the form of a fighter jet. Secretary of State Marco Rubio visited Portugal to advocate for the F-35 as Lisbon weighs replacing its aging F-16 fleet — a procurement decision that carries weight far beyond its price tag. The choice Portugal makes will quietly answer a deeper question: whether European NATO allies see their future as integrated partners in an American-led defense architecture, or as nations seeking a more independent path.
Secretary of State Marco Rubio traveled to Portugal this week carrying a pointed message: Washington wants Lisbon to choose the F-35 as the replacement for its aging F-16 fleet. The visit was diplomatic in tone — Rubio praised Portugal as a "great ally" and spoke of deepening bilateral ties — but the underlying logic was harder. The U.S. has been pressing NATO members to increase defense spending, and steering procurement toward American systems is a central part of that campaign.
Portugal joined NATO in 1949 and has operated F-16s for decades, but those aircraft are nearing the end of their useful lives. What comes next matters beyond Portuguese airspace. An F-35 purchase would signal deeper integration with American military technology and doctrine; a European alternative would say something different about where Lisbon sees its loyalties in an era of contested defense autonomy.
The F-35 is the most advanced fighter available, but also the most expensive and the most dependent on American supply chains — a significant consideration for a smaller country committing to decades of maintenance and operational reliance. Portugal has indicated it is weighing the F-35 alongside other options, a posture that suggests either genuine openness to alternatives or a calculated effort to retain leverage in negotiations.
The broader stakes are clear. As NATO allies across Europe modernize their air forces, the F-35 has become Washington's preferred instrument of alliance standardization. More defense spending and more American equipment purchases tend to reinforce each other, deepening interoperability and military interdependence. Rubio's visit was an effort to nudge Portugal toward that model. Whether Lisbon ultimately follows will reveal something about how it understands its place — between an American-led alliance and an increasingly assertive European defense identity.
Secretary of State Marco Rubio arrived in Portugal this week with a clear message: the United States wants Lisbon to buy American fighter jets. As Portugal weighs how to replace its aging fleet of F-16s, the U.S. is actively promoting the F-35, the Pentagon's most advanced and expensive combat aircraft, as the preferred option.
The timing of Rubio's visit underscores how seriously Washington takes the decision. Portugal, a NATO member since 1949, currently operates F-16s that have served the country for decades but are reaching the end of their operational life. The choice of what comes next matters not just for Portuguese air defense but for the broader architecture of NATO capabilities in Europe. If Portugal opts for the F-35, it signals deeper integration with American military technology and doctrine. If it chooses something else—another European fighter, perhaps, or a different American platform—it sends a different message about European defense autonomy and industrial preference.
Rubio's visit framed the issue in terms of alliance solidarity and shared commitment. He praised Portugal as a "great ally" and spoke of building deeper ties between the two countries. But beneath the diplomatic language lay a harder reality: the U.S. is pressing NATO members to spend more on defense, and part of that pressure involves steering procurement decisions toward American systems. Rubio characterized this push not as coercive but as reasonable—the U.S. is not being "hostile," he said, merely insistent that allies meet their obligations.
Portugal is not alone in facing this choice. Across Europe, NATO members are modernizing their air forces, and the F-35 has become the centerpiece of American strategy to standardize equipment across the alliance. The aircraft is extraordinarily expensive—each unit costs roughly $130 million when development and support are factored in—and it represents a massive commitment of resources and industrial capacity. For a smaller country like Portugal, the decision involves not just the purchase price but decades of maintenance, training, spare parts, and operational dependence on American supply chains.
The Portuguese government has indicated it is seriously considering the F-35 alongside other options. That language suggests the decision is not yet made, that alternatives remain on the table. What those alternatives might be is less clear from the available reporting, though European manufacturers like Airbus and Dassault have their own fighter offerings. The fact that Portugal is keeping options open suggests some resistance to the American push, or at least a desire to maintain negotiating leverage.
Rubio's visit, and the broader U.S. campaign around it, reflects a larger strategic calculation. The Biden administration has made NATO strengthening a centerpiece of its foreign policy, particularly in light of Russian aggression in Ukraine. Getting allies to spend more on defense is one part of that equation. Getting them to buy American equipment—and specifically, to buy the F-35—is another. The two goals reinforce each other: more defense spending often means more American sales, and standardization around American platforms makes NATO interoperability easier and deepens the military relationship between Washington and its allies.
For Portugal, the decision will likely come down to cost, capability, and political calculation. The F-35 is the most advanced option available, but it is also the most expensive and the most dependent on American support. A European alternative might offer less cutting-edge capability but greater industrial independence and potentially lower long-term costs. The choice Portugal makes will say something about how it sees its role in NATO and in Europe more broadly—whether as a junior partner in an American-led alliance or as part of a more autonomous European defense project. Rubio's visit was an attempt to nudge Lisbon toward the former view. Whether it succeeds remains to be seen.
Citations marquantes
Rubio characterized U.S. pressure on NATO allies to increase defense spending as reasonable and not hostile— Secretary of State Marco Rubio
Rubio praised Portugal as a 'great ally' and spoke of building deeper bilateral ties— Secretary of State Marco Rubio
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