I have a problem. All my nobles and HA are at east conquering those cities with gold mines. To secure my border against AS I had to train levy troops (greek levy spearmen and persian archers) and fortify Persepolis.

My problem is to train Saka Heavy Hoplites (those after reforms) at Persepolis, I cant build Allied Govern there, only nomadism and pastoralism are available. RV says I can train Indo-Saka units at Persepolis but I cant do it.

It's not easy defend a city with levy troops and I am being sieged every year. What to do?