During Donald Trump’s first term as president, his foreign policy and interactions with other countries were often marked by a focus on “America First,” which led to varying diplomatic dynamics. Several countries had close relationships with the U.S. under his administration, and these nations were often the first to offer congratulations after Trump’s election.

1. Israel: Israel, under Prime Minister Benjamin Netanyahu, was one of the strongest international allies of the Trump administration. Trump’s support for Israel, including his recognition of Jerusalem as its capital and moving the U.S. embassy there, earned him significant support from Israeli leaders. Given this close relationship, Israel was one of the first countries to congratulate Trump after his election.
2. Russia: Russia, under President Vladimir Putin, also had a relatively cordial relationship with Trump, particularly during his first term. Although the U.S.-Russia relationship was complex and controversial, there was mutual respect between the leaders, and Russia was quick to congratulate Trump after his victory in 2016.
   
3. Saudi Arabia: Saudi Arabia, another key U.S. ally in the Middle East, was quick to offer congratulations to Trump following his win. The Saudi-U.S. relationship was strengthened under Trump, with major arms deals and cooperation on issues like counterterrorism. Trump also had a friendly relationship with the Saudi royal family.
4. United Kingdom: The UK, as one of the U.S.’s closest allies, typically congratulated the president-elect early. Although the political relationship fluctuated during Trump’s term, especially with Prime Minister Theresa May and later Boris Johnson, the UK would likely be one of the first countries to extend congratulations.
5. Japan: Japan, under Prime Minister Shinzo Abe, had a strong relationship with the U.S. during Trump’s presidency, particularly on security issues and trade. Japan’s congratulatory message would likely come early, reflecting the close ties between the two nations.

Based on Trump’s previous interactions with these countries, it’s likely that Israel, Russia, Saudi Arabia, the UK, and Japan would be among the first to congratulate him following his re-election, given their historically strong relationships during his first term.