The best part of the G20 summit this year? Trump's many gaffes.

Trump has probably learned the hard way that not all Asians look alike, after he mixed up Singapore's Prime Minister Lee Hsien Loong for Indonesian President Joko Widodo.

The original Instagram post in which he mixed the duo up has now been deleted, but not before it was immortalised on Twitter:

Unfortunately for Trump's social media team, this is President Joko Widodo of Indonesia.

Reactions were swift on Twitter:

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The caption was later changed to reflect the correct leader.

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You know what they say -- second time's a charm.

Taiwan or China?

But if you thought that was bad, be prepared for some major cringe.

A press release issued by the White House referred to Chinese President Xi Jinping as the President of the Republic of China.

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The Republic of China in fact refers to Taiwan, whereas China is known officially as the People's Republic of China.

This seemingly minor difference, however, is a huge snub to Chinese citizens, who view Taiwan as a renegade, breakaway province.

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Prime Minister or President?

And to end things off, here's the White House with yet another mistake.

Japanese Prime Minister Shinzo Abe got a title change, after he was referred to as President Abe of Japan in yet another of the White House press releases.

Naturally, the mistake was soon quickly corrected, but good ol' Twitter never forgets.

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Yeah, that pretty much sums it up.