Feeding in bases query.

[deadtorius]

When you take a front rank loss you MUST IMMEDIATLY replace it if possible - this is in the rules on taking losses.
When feeding in bases you can do so only by expanding, or by contracting - if you took a loss and could not replace it at the time the chances are you can't replace it by feeding more bases in because even if you now have bases available the chances are it isn't an expansion, and a contraction requires all the bases in the contracted file be moved to positions where they contribute.

My reference was for feeding in only, if you have a rear rank base it must move up into the newly created gap after you remove the casualty base, feeding in can only be done by a base that is not currently fighting or acting as an overlap which occurs during the next manouver phase. Guess I should have been more clear in my explanation.