The colors of the Japanese national flag are red and white. It consists of a large red circle centered on a rectangular white flag, representing the Rising Sun. Earlier versions of the flag (including the World war II military flags) contained red "rays" emanating from a red circle.
It has a white background and a red (plus sign) cross on it.
The flag of Corsica is white with the head of an African.
Norway
The flag of "England" is the cross of St. George, red "t" on a white background The Union Jack (i.e. the flag of the United Kingdom) includes the crosses of St. George, St. Andrew (Scotland = White "X" on blue background) and St. Patrick (Ireland = Red "X" on white background)
Japan. -- Its flag has a white background and red circle in it.
The flag with a red circle on a white background represents Japan, Land of the Rising Sun.
Japan has a red circle on a white background. Bangladesh has a red circle on a green background.
The two colors of the Japanese flag are white and red. The flag is called Nisshoki in Japanese but is more popularly known as Hinomaru.
The Japanese flag has a white background with a red circle in the middle.
The flag of Switzerland has a red background and white cross (+). The flag of Scotland, the Saltire, has a dark blue background and a white cross (X). The flag of Denmark has a red background and white cross (+).
The flag with a red circle on a white background represents Japan, Land of the Rising Sun.
The flag with a blue cross on a white background belongs to Finland.
Japan has a white circle in the middle of its flag.
That is the flag of the Red Cross, not of a country. The flag of Switzerland has a red background with a white cross. The flag of Tonga has a red cross on a white field, the corner of a red flag.
Red circle in a white background
The flag of South Korea has a white background with a blue and red wave-like circle in the center with four sets of three black trigrams surrounding the central circle. The flag of North Korea is a red star in a white circle on a red background with white and blue stripes along the top and bottom.