Distance marching rates, infantry v cavalry

[Nathan Ross]

Will you stop shooting the messenger please - it wasn't me who brought this up!! :?

Actually it was me who mentioned the 'cavalry reserve' in my original post, although in my defence I did say supposed... :-)

Have a look at this

Interesting, but I'd question the figure given for cavalry in the Dacian war. Like many estimating army sizes and units in the Dacian war in particular, the author assumes that every unit attested in the neighbouring provinces would be committed to the campaign, which for logistical reasons alone probably wasn't the case.