Some numbers for Lazic war:
Second siege of fort Petra 548-Persians:1000 death,300 wounded not capable of other fighting(but Persian victory).Procopios
Third siege of fort Petra(550?)
ersians:1600 death,730 captured.Procopios
Battle of Archaipolis 551
ersians:4000 death(3 generals,4 standarts) and 20 000(!)horses killed.Procopios
Battle of Phasis river 549-Persians:around 2000 death(Two ambush engagements were fought shortly after one another,in both around 1000 persians had fallen).Procopios.
Battle in Mountain Pass near fort Petra 548:Heroic defence of important Pass in Thermopyl style(although mentioned only very briefly)where Procopios says a small unit of 100 Romans managed to resists for some hours 30 000 strong main persian army under great general Mermeroes causing them allegedly more than 1000 fatalities before they were forced to retreat off the pass.
Siege(and battle)of fortress town of Phasis 555-556
ersians allegedly lost up to 10 000 men while Romans lost no more then 200.Says Agathius(continuator of Procopius)
Both numbers are probably exaggerated but there is no doubt this was greatest defeat of the persia in this"colonial war"after which war goes in Roman favor as Persians lost their offensive potencial.Romans probably suffered similarly heavy defeat at forts Telephis and Onoguris although no specific numbers of casualities are mentioned ,only that an army of around 50 000 men(biggest force Romans had assembled in this war)was heavily decimated leaving situation for some time heavily in favor of Persia.
Many more engagmens were fought in the lazic war-These are only those bigger where some casualties numbers are mentioned.
Other wars"statistics"will follow.