What is the national day of Germany?
The National Day of Germany is called German Unity Day. It is celebrated on 3 October as a public holiday. This day commemorates the reunification of West and East Germany after which since the end of second world war in 1945, Federal Republic of Germany existed as a single German state.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: What is the national day of Germany?
### Input: 
### Response: The National Day of Germany is called German Unity Day. It is celebrated on 3 October as a public holiday. This day commemorates the reunification of West and East Germany after which since the end of second world war in 1945, Federal Republic of Germany existed as a single German state.