Who's the leader of planet earth.

Suppose aliens land in timbaktu, and ask the locals to take them to their leader, who will represent earth.

Le’ President’e Uhuru Muigai Kenyatta.

Kwin of Englandy

How will the aliens “ask” to be taken to the leader? Let’s start there coz aliens will not be speaking earthly languages…if they even speak that is.

The Pope.

Telepathy perhaps?

How do we know that ? Moses was taught the Hebrew language while on the Mountain and Guru Agastya was taught the Tamil Language by Lord Shiva.
I personally don’t think that would be much of a problem.

Thanos

In that case, if they landed where I live I would telepathically direct them to the area chief.

Moses was taught what by who? The same Moses who butchered 3000 of his own people and said God instructed him to do so? Moses was a dictator who used religion for political mileage.

Let’s stick to language

The Sumerian and The Basque languages are among the unique languages on earth. In that, no other language preceded them.

How are we able to decipher the Egyptians hieroglyphs ?

The Rosetta Stone is a granodiorite stele inscribed with three versions of a decree issued in Memphis, Egypt, in 196 BC during the Ptolemaic dynasty on behalf of King Ptolemy V Epiphanes. The top and middle texts are in Ancient Egyptian using hieroglyphic and Demotic scripts respectively, while the bottom is in Ancient Greek. The decree has only minor differences between the three versions, making the Rosetta Stone key to deciphering the Egyptian scripts.

https://en.m.wikipedia.org/wiki/Rosetta_Stone

How are we able to decipher Sumerian Cuneiform

The Behistun Inscription (also Bisotun, Bistun or Bisutun; Persian: بیستون‎, Old Persian: Bagastana, meaning “the place of god”) is a multilingual inscription and large rock relief on a cliff at Mount Behistun in the Kermanshah Province of Iran, near the city of Kermanshah in western Iran, established by Darius the Great (r. 522–486 BC). It was crucial to the decipherment of cuneiform script as the inscription includes three versions of the same text, written in three different cuneiform script languages: Old Persian, Elamite, and Babylonian (a variety of Akkadian). The inscription is to cuneiform what the Rosetta Stone is to Egyptian hieroglyphs: the document most crucial in the decipherment of a previously lost script.

Why would the aliens ask for a leader?

The Pope lords over half the Earth and indirectly affects decisions of majority of the rest thru his at Peters baccillica surmons

no other known written languages, there were of course other older spoken languages.

The pope is just a figurehead, he has no power, there are others more powerful than him, yeye anasimamia mambo ile spiritual hana control ingine

Ungetamani sana pope akutombe vile anatombanga vijana wadogo huko vatican.

I will only supports alien invasion if they promise to wipe out all gays and mentally retarded people like @PHARMACY