here is what i read in the last few months.

The enemies of Rome by P. Matyszak
greatest leaders that fought Rome, from Hannibal to Attila. addressed to general public somewhat lacks depth. it is obviously impossible to tell every character's story thoroughly in a single volume. fine read nevertheless.

The ancient world at war edited by P. de Souza.
tries to cover the entire globe, from the wars before history till early middle ages. written by many different authors with each covering particular country and time frame.
greatly done, real eye candy.

Besieged by D. B. Campbell
development of siege warfare from 6th century Persia to the 4th century Roman world.
also greatly illustrated.

Hellenistic infantry reform in the 160's BC by Nicholas Sekunda
the latest work of N. Secknda where he somewhat changes his earlier ideas (expressed in his previous works) on what happened in the infantry reforms of the 160's.