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Donald Trump's return to the White House has so far seen the U.S. president travel to foreign lands to sign , attend and attempt to forge elusive peace agreements amid . And on Sept. 17, 2025, he is expected to visit the United Kingdom for a second hosted at Windsor Castle.

Meanwhile, leaders from across the world have visited the White House during Trump's second term. Examples include everyone from El Salvador's president, Nayib Bukele, who , to Jordan's King Abdullah II, who in February. And all eyes were on the in Alaska between Trump and Russian President Vladimir Putin.

Of course, this represents only a fraction of the total miles clocked by prime ministers, presidents and other heads of state and government. But what can we learn from the travel trends of world leaders?

With our colleagues at the University of Denver's , we have meticulously cataloged every known, observed overseas trip taken by the primary heads of government and state from more than 200 countries from 1990 through 2024. Our is a first-of-its-kind, that allows us to thoroughly examine the causes, consequences and patterns of high-level leader diplomacy.

Even a cursory look illustrates how much the world has changed in recent decades. One of the first trips in the COLT dataset is former Czechoslovakian Prime Minister Marian Calfa's visit to the German Democratic Republic on the day after New Year's Day 1990. Neither country exists any longer. One of the more recent trips in COLT is a November 2024 visit to Azerbaijan by the president of Montenegro, neither of which country existed as an independent entity until 1991 and 2006, respectively.

Here are a few broader lessons we have learned so far from the more than 100,000 trips taken by world leaders in the past 35 years.

Who and where reveals geopolitical trends

The travel patterns of leaders are a powerful indicator of their priorities and the perceived importance of other nations. Many leaders have made a point to get face time in the White House in the United States, for example, while far fewer have made a point of visiting the Blue House in South Korea.

One way to assess a country's perceived power is through the balance of leader-level foreign travel to and from the country.

Again, take the U.S. for example. Our data tracks over 500 overseas trips by U.S. presidents since 1990, contrasted with more than 6,000 visits by foreign leaders to the United States. These inbound visits to the U.S. span the spectrum from major events such as the annual in New York and to numerous lower-profile meetings where a foreign head of government or state may not even secure an audience with the U.S. president.

Crucially, the president's meeting schedule and choices illuminate which international issues—such as Russia's war in Ukraine—are paramount and which countries and leaders hold greater strategic significance.

To understand global power dynamics more broadly, consider the stark difference in net visits for the U.S. and Canada. The U.S., with 260 received visits versus only seven taken by its leader, President Joe Biden, in 2024, demonstrates a high imbalance. In contrast, Canada exhibits a much more balanced diplomatic exchange.

In 2024, the Canadian prime minister, Prime Minister Justin Trudeau, made 13 foreign trips—each country visited counted as a unique trip—while the country received only 12 visits from other heads of government or state. This "net visit" metric offers a compelling way to understand a country's relative importance on the global stage.

While the power differential between the U.S. and Canada may be obvious, we can conduct similar comparisons for countries across the globe.

On the other end of the spectrum from the U.S. is Somalia. Its president has traveled abroad eight times more than all other countries have visited Somalia between 1990 and 2024—334 trips abroad versus 40 visits received. During that same time period, neighboring Kenya has roughly broken even, with 501 presidential trips abroad and 557 top leader visits received.

Heads of state are increasingly on the move

World leaders are also traveling significantly more than they did 35 years ago. In the 1990s, an average of 1,508 overseas trips by heads of government or state occurred annually. Since 2010, this average has surged to approximately 2,734 trips per year.

This increase in global leader travel is accompanied by notable shifts in regional representation. African leaders, for instance, now account for a larger proportion of total overseas trips. From 1990 to 1994, they composed about 20% of all world leader travel; this figure rose to roughly 30% between 2020–2024. This has coincided with Africa's increasing economic integration and .

Conversely, the relative share of international travel by Latin American leaders has declined. Their proportion of global leader travel fell from around 15% in 1990-1994 to about 10% since the onset of the COVID-19 pandemic in 2020. Like all others, Latin American leaders of today on average travel more than they once did, but other leaders from other regions are traveling even more.

Asian leaders show a similar relative decrease, dropping from roughly 25% of all world leader trips in 1990-1994 to just over 17% from 2020–2024. This trend for Asian leaders coincides with the popular narratives surrounding the "," suggesting that for leader travel, the continent's ascendance may primarily apply just to China.

As one indication of this fact, China received 78 visits from other countries' top leaders from 1990–2000, whereas that figure from 2010–2020 was 133, a number that would have been higher had global travel not halted during the COVID-19 pandemic.

Most leaders stick to their neighborhoods

A pivotal characteristic of contemporary global leader travel is its predominantly intraregional nature. Leaders overwhelmingly prioritize visits to countries within their own geographic areas: African leaders to other parts of Africa, European leaders to countries in Europe, and so on.

This phenomenon fits a general trend toward multipolarity, where the geopolitical landscape is no longer defined solely by the bipolar rivalry that characterized the Cold War.

While this concentrated regional diplomacy may not consistently garner front-page headlines, especially in U.S. media outlets, it is a crucial arena for achieving significant geopolitical gains such as enhanced trade and investment.

The , held in Barbados in February 2025, serves as a case in point. During the summit, Caribbean heads of government and state convened to address a range of , strengthen internal trade agreements, finalize cooperation accords and deliberate on broader geopolitical concerns, underscoring the critical importance of these intraregional diplomatic efforts.

Some leaders just want to have fun

Beyond the strategic imperatives of statecraft, the travel patterns of world leaders occasionally reveal a significant personal dimension. For example, Ecuadorian President Daniel Noboa made eight trips to the U.S. in 2024, with four—including family vacations—explicitly designated as personal.

Another illustrative case is that of the former Belize Prime Minister Dean Barrow, who frequently traveled to the U.S. for personal engagements, ranging from necessary to leisure pursuits, such as prioritizing exclusive restaurants like the now-closed, once in Los Angeles.

Recently, Trump managed to mix business and pleasure, "meeting the U.K. and Scottish heads of government in between rounds of golf," as the BBC .

Where leaders go tells us where we are headed

So, what can we make of Trump's recent travel plans?

In terms of U.S. presidents, his summer itinerary was, in general, mostly more of the same than a break with the past mixing of geopolitics and the occasional side of personal interests.

This is not to say that nothing has changed, however. Were it not for the , the first overseas trips by Trump in his first and second terms in office would have been to Saudi Arabia. This may be an indication that the Gulf region plays a broader role in Trump's geopolitical calculations than it did for past U.S. presidents. It may also simply be another idiosyncrasy of Trump.

Whatever the case, our COLT dataset offers broad perspective of the incredibly complex nature of global diplomacy. From high-stakes official visits to personal trips, understanding where leaders go, and why, is crucial to grasping the evolving landscape of international diplomacy.