What does De Oppresso Uber mean?

It's "De oppresso liber" -- "to liberate the oppressed" -- and it is the motto of the U.S. Army Special Forces.

https://en.wikipedia.org/wiki/United_States_Army_Special_Forces

It's the motto on a US Special Forces patch, and 'uber' means productive, fertile, abundant or rich in Latin, and oppresso will come from the gerund of opprimo, and will mean the oppressed. 'From the oppressed, riches' is a possible slightly free translation as 'de' means from or concerning.

It looks like UBER, and they call it Uber. Odd.

"De oppresso liber" is the motto of the United States Army Special Forces.

In the United States Army Special Forces, the motto is traditionally believed to mean "to free from oppression" or "to liberate the oppressed" in English.

A correct translation of the phrase de oppresso liber would be "from (being) an oppressed man, (to being) a free one".

https://en.wikipedia.org/wiki/De_oppresso_liber