Defence support group (DSG) is an important part of the defence forces of any country. The DSG is responsible for providing maintenance and repair services for military equipment and vehicles. Synonyms for DSG could include support services, logistics support, maintenance and repair services, military equipment maintenance, and technical support services. Some other related terms that may be used in place of DSG could be defence support contractor, defence maintenance and support service, and military engineering support. These synonyms basically refer to the various functions and services that the DSG provides to the defence forces in order to ensure that they are equipped with top-notch and well-maintained equipment and vehicles.