German phrase
Der Hintergrund ist, dass ~.
Meaning
The reason is that ___
When to use it
It briefly gives the reason. Use it to explain a situation in conversation.
Example dialogue
Warum bist du nicht zur Besprechung gekommen?
Why didn't you come to the meeting?
Der Hintergrund ist, dass ich plötzlich krank wurde.
The reason is that I suddenly got sick.