WASHINGTON -- For a third straight presidential election campaign, former U.S. president Donald Trump is being serially inaccurate about the North Atlantic Treaty Organization (NATO) military alliance.

Trump caused a translatlantic uproar this weekend by claiming at a Saturday campaign rally that he had once told the president of a 鈥渂ig鈥 NATO country that if that country didn鈥檛 pay its 鈥渂ills,鈥 he would not protect the country from a Russian invasion and would even 鈥渆ncourage鈥 Russia 鈥渢o do whatever the hell they want.鈥

Trump鈥檚 incendiary remarks contained a familiar false claim. His assertion about NATO allies supposedly having failed to pay 鈥渂ills鈥 is not true, as fact-checkers at CNN and elsewhere have pointed out for years.

And Trump has for years made a variety of other false claims about spending by NATO and its members. Here is a fact check of five of his repeated statements.

Spending by NATO members

Trump has long claimed that various NATO members have failed to pay their 鈥渂ills,鈥 鈥渄ues鈥 or 鈥淣ATO fees,鈥 that they 鈥渙we us a tremendous amount of money鈥 or that they 鈥渙we NATO billions of dollars.鈥

Facts First: All of these Trump claims are false. While a majority of NATO members the alliance鈥檚 target of each member spending a minimum of 2% of gross domestic product on defence, 鈥 that does not create bills, debts or legal obligations if it is not met.

In fact, the guideline doesn鈥檛 require payments to NATO or the U.S. at all. Rather, it simply requires each country to spend on their own defence programs.

When Trump was president, the guideline was written in forgiving language that made clear that it was not a firm commitment. That version of the guideline, created at a NATO summit in Wales in 2014,  members that had yet to reach 2% would 鈥渁im to move towards the 2% guideline within a decade with a view to meeting their NATO Capability Targets and filling NATO鈥檚 capability shortfalls.鈥

In other words, the members that were below 2% in 2014 didn鈥檛 even have to promise to hit the target by 2024 鈥 simply to make an effort to do so by then.

NATO does require members to make direct contributions to fund the organization鈥檚 own operations. But there is no sign that members have failed to make those contributions, which constitute a tiny fraction of the allies鈥 defence spending, and Trump has made clear that his talk of debts is about the 2% guideline.

, the Paterson Chair in International Affairs at Carleton University in Canada, said in a Monday email that the word 鈥渋naccurate really does not cover Trump鈥檚 protection racket/country club perception of dues owed to the U.S.鈥

鈥淭he money, as you and everyone else knows, is not sent from member states to the U.S. or NATO (although there is a common fund that pays for the buildings in Brussels and elsewhere but it is not that much money and is not the focus of the 2% discussions). The commitment is for each country to spend enough on their own militaries 鈥 2% of GDP, 20% of defence spending on equipment 鈥 so that the alliance as a whole is capable and can credibly deter Russia and do whatever else the alliance agrees to,鈥 Saideman said.

As of 2023, 11 of 30 NATO members were meeting the 2% target, . That was up from three members in 2014.

, a research professor at George Washington University鈥檚 锘縀lliott School of International Affairs and director of its Transatlantic Program, noted in a Monday email that NATO members agreed to firmer language related to the 2% target in 2023,  that 鈥渨e make an enduring commitment to invest at least 2% of our Gross Domestic Product (GDP) annually on defence.鈥 Lagadec said that 鈥渁rguably for the first time the Allies HAVE made a hard commitment to reaching 2% (indeed, to reaching at least 2%) rather than merely 鈥榯rying to get there if possible.鈥欌

He noted, though, that even this stronger declaration 鈥渄oesn鈥檛 provide a deadline鈥 to hit 2%. Regardless, it will not create actual debts to the U.S. or NATO.

NATO members鈥 spending before Trump took office

As president, Trump that NATO members鈥 spending had declined 鈥渆very single year鈥 until he took office in 2017. He sometimes claimed there had been , or years of declines.

Facts First: Trump鈥檚 claims that NATO members鈥 spending had declined every year until he took office are false. Official NATO show that non-U.S. members鈥 defence spending increased in each of the two years prior to Trump鈥檚 presidency 鈥 by 1.6% in 2015 and 3.0% in 2016. The increases came after NATO members in the wake of Russia鈥檚 annexation of Ukraine鈥檚 Crimea region.

Non-U.S. members鈥 defence spending increases in each year of the Trump era were bigger than their increases in 2015 and 2016 鈥 the increases were 5.9% in 2017, 4.3% in 2018, 3.6% in 2019 and 4.6% in 2020 鈥 and NATO Secretary General Jens Stoltenberg . But Trump is wrong when he claims he reversed a downward trend.

鈥淚f you look at the year-on-year data, the turning point away from the nadir of European defence spending happened in 2014, pre-Trump, and clearly due to Crimea,鈥 Lagadec said.

Saideman said that while it鈥檚 possible he is undervaluing Trump鈥檚 impact because he generally dislikes Trump, 鈥淧utin deserves most of the credit for defence spending increases in Europe.鈥 He said, 鈥淓veryone was cutting their defence budgets after the 2008 economic crisis and as countries started pulling out of Afghanistan, and all that changed with the seizure of Crimea.鈥 And he argued that any increases sparked by Trump are likely less about his efforts to cajole allies than about those allies鈥 concerns about the U.S. no longer keeping its commitments given what has sounded from Trump like 鈥済enuine hostility to the alliance and to the allies.鈥

Under President Joe Biden, non-U.S. NATO members increased their defence spending by 2.8% in 2021 and an estimated 2.0% in 2022, then by an estimated 8.3% in 2023.
That large 2023 spike was 鈥渃learly in reaction to the full-fledged invasion of Ukraine鈥 in 2022, Lagadec said.

The U.S. share of NATO spending

As president, Trump repeatedly claimed that, before him, the U.S. was 鈥溾 or 鈥.鈥

Facts First: Trump鈥檚 claims are false. Official that in 2016, the last year before Trump took office, U.S. defence spending made up about 71% of total defence spending by NATO members 鈥 a large majority, but not 鈥100%鈥 or 鈥渃lose to 100%.鈥 And Trump鈥檚 claim is even more inaccurate if he was talking about the direct contributions to NATO that cover NATO鈥檚 organizational expenses and are set based on each country鈥檚 national income; the U.S. was responsible for in 2016.  

The U.S. share of total NATO military spending fell to about 68% in 2023. And the U.S. is now responsible for about 16% of direct contributions to NATO, the same as Germany; Lagadec said the U.S. share was reduced from 22% 鈥渢o placate Trump鈥 and is a 鈥渟weetheart deal鈥 given that the U.S. makes up .

What previous presidents told NATO members

As president, Trump repeatedly claimed that before he pressured NATO members to increase their defence spending, U.S. presidents did not even ask them to do so. He singled out former President Barack Obama in his comments at the rally on Saturday. After referring to NATO members Trump said he pressured himself, he continued: 鈥淎nd then I hear that they like Obama better. They should like Obama better. You know why? Because he didn鈥檛 ask for anything.鈥

Facts First: Trump鈥檚 claims are false. , repeatedly pressed other NATO members to spend more on defence, though their public language was less confrontational than Trump鈥檚.

At a news conference in Belgium in 2014, Obama , 鈥If we鈥檝e got collective defence, it means that everybody has got to chip in. And I have had some concerns about a diminished level of defence spending among some of our partners in NATO 鈥 not all, but many. The trend lines have been going down.鈥 In a speech in Germany in 2016, Obama , 鈥淓very NATO member should be contributing its full share 鈥 2% of GDP 鈥 towards our common security, something that doesn鈥檛 always happen. And I鈥檒l be honest, sometimes Europe has been complacent about its own defence.鈥 In a speech to Canada鈥檚 Parliament in 2016, he , 鈥淎s your ally and as your friend, let me say that we鈥檒l be more secure when every NATO member, including Canada, contributes its full share to our common security.鈥

In a in the Czech Republic in 2002, before a NATO summit, Bush said that every NATO member needs to make a military contribution to the alliance, and 鈥渇or some allies, this will require higher defence spending.鈥 Bush and top administration officials to push for increased spending. While visiting Romania in 2008, Bush , 鈥淏uilding a strong NATO alliance also requires a strong European defence capacity. So at this summit, I will encourage our European partners to increase their defence investments to support both NATO and EU operations.鈥

The cost of NATO鈥檚 headquarters 

While criticizing NATO both during and after his presidency, Trump has claimed that NATO spent US$3 billion on its headquarters building in Belgium.

Facts First: Trump鈥檚 US$3 billion figure is not close to accurate. NATO told CNN in 2020 that the headquarters building was constructed for a sum under the of 1.178 billion euro, or about US$1.27 billion at Monday exchange rates 鈥 certainly an expensive facility, but less than half what Trump has claimed.