Forward march is a phrase used to indicate to soldiers to move forward in a marching formation. If you are looking for other synonyms that convey a sense of marching forward together, you can use phrases like "march on," "march forward," or "advance." Other synonyms that add a sense of urgency include "push ahead," "move forward decisively," and "continue on with determination." Depending on the context of the situation, some other synonyms include "press forward," "proceed," "march ahead," and "move ahead." No matter which synonym you use, each phrase conveys a sense of moving forward together with purpose and determination.