The civil flag of Hesse

Hesse

Hesse or Hessia is both a cultural region of Germany and the name of an individual German state.* The cultural region of Hesse includes both the State of Hesse and the area known as Rhenish Hesse in the neighbouring Rhineland-Palatinate state...

consists of a bicolor of a red top and a bottom white stripe, in the proportion 3:5. The state flag is similar, except it is defaced with the coat of arms in the centre, and may only be used by government departments and services. It is the reverse of the flag of Thuringia

Flag of Thuringia

Both the civil and state flag of the German state of Thuringia feature a bicolour of white over red, comparable to many other flags such as that of Poland. The design is historical...

 and, apart from the proportions and the shades of red, identical to the flag of Indonesia

Flag of Indonesia

The national flag of Indonesia, which is known as Sang Saka Merah-Putih or Bendera Merah-Putih or simply Merah-Putih in Indonesian, is based on the banner of the 13th century Majapahit Empire in East Java...

 and the flag of Monaco

Flag of Monaco

The national flag of Monaco has two equal horizontal bands of red and white, both of which have been the heraldic colors of the House of Grimaldi since at least 1339...

.