What flags are

National flags

A symbol of state sovereignty

Trading flags

Are usually used on trading courts and will be worn out in the International ship register

Military flags

Use in military parts and by the military ships

Ship flags

Are given to the steamship companies

Alarm flags

Are used during navigation for "dialogue" with other ships

Flags of firms

Belong to business concerns and can be used in representation purposes

Sports flags

Flags of sports federations, the organizations, Olympiads and competitions, including special

Colored flags

The flags of various colors used for an ornament of cities or separate objects