sentences:  Perhaps the best example of the empire-building application of the expeditionary warfare were the conflicts between the British Empire and the Boer settlers in South Africa, and the resulting First and Second Boer Wars.The period of the First World War that prolonged well past its completion into the 1920s saw expeditionary warfare established as a systematic and planned type of operations with larger scope than simple transportations of troops to the theatre such as the British Expeditionary Force in 1914, Russian Expeditionary Force in 1916, and the American Expeditionary Force in 1917, and the beginnings of development in true combined operations at strategic, operational and tactical levels with the unsuccessful amphibious landing at Gallipoli.Not only did this operation combine the elements of overall war planning context, multinational deployment of forces as part of the same operation, and use of troops prepared for the landings (as opposed to disembarkation), as well as naval gunfire support that was only limited during the era of sailing ships, but also included extensive use of combat engineering in support of the infantry.