...but people had done that before. Ghenghis Khan in Transoxianna in 1219/20 is just one of several examples I can think off. Ancient "Armies" often had to march dispersed because they simply ate out the land they were covering.
I was re-reading Moltke last night, and noted he only ever talks of "Strategy" and "Tactics." - as does Hamley. Both men understood the need to conduct "Operations," but merely saw this as the necessary preliminaries to battle.
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