I'm interested in cost comparisons between AC and RC forces, armor and infantry and wondering if someone might point me in the right direction? Also, the Army has talked about fielding a lighter force and plans to replace two HBCTs with SBCTs. To me it would make sense to replace IBCTs because SBCTs may also function as light infantry. Can the U.S. afford to transfer most of the armor force to the reserves/ARNG and still field a high quality, combat ready force? Or, should the AC Army keep all armor battalions and the reserves/ARNG convert their HBCTs to IBCTs?