Double-marching is a term that reflects the synchronized and rhythmic movement in marching, where two steps are taken for each beat of the drum. Synonyms for this term could include double-step, two-step marching, double-time marching, quick-marching or just marching in unison. These words denote a collective movement where every soldier moves their left or right foot in the same manner, at the same time as their comrades. These terms have been predominantly used to describe the walking pattern of military personnel or for the marching bands in parades. Whether it's called double-marching or quick-marching, it's the harmony and synchronization of movement that's important, rather than the specific term used.