Describe the first wars for the redivision of the world. What character were they?

In the 19th and 20th centuries, most of the planet’s territories were under the control of large political groups that sought to further expand their influence and territory. Among them are the following countries: Italy, the Netherlands, France, Britain, Germany, Japan and the Russian Empire. The confrontation between them led to the denouement of a series of conflicts that were the harbingers of a larger First World War: the Anglo-Boer War, the Spanish-American War, the Russo-Japanese War, etc.