President Donald J. Trump was elected on promises to “Make America Great Again,” and since January 20 he’s already signed a number of executive orders to tighten border security and ease regulations. Whether you approve of his actions or not, no one can deny that many of Trump’s policies are a sharp departure from American politics of the last half century, which has emphasized globalism and interventionism.

It isn’t until we look at the bigger picture, though, that we realize Trump’s ascent is in line with a nationalistic wave that’s spreading across the globe, from Asia to Europe and beyond. As investors, it’s important that we familiarize ourselves with these global policymakers, thought leaders, mavericks and disruptors. Government policy, after all, is a precursor to change.

Below are four such leaders who have more in common with Trump than you might realize.