what appen here?

[loricas]

Ground combat at Loyang (87,43)

Japanese Bombardment attack

Attacking force 576 troops, 29 guns, 24 vehicles, Assault Value = 1

Defending force 36362 troops, 140 guns, 0 vehicles, Assault Value = 981

Japanese ground losses:
Vehicles lost 1 (0 destroyed, 1 disabled)


Allied ground losses:
115 casualties reported
Squads: 2 destroyed, 2 disabled
Non Combat: 0 destroyed, 7 disabled
Engineers: 0 destroyed, 0 disabled


Assaulting units:...
5th Medium Field Artillery Regiment...

at start of my turn there is no trace of japan units in Loyang.
the japan unit apparently crossed the river...and is not here preceding turn

[loricas]

my opponent say that the art unit go, bombard and retreat without losses on the other side of the river