Japanese artillery in Grodno/Belarus it reads..
- In the first year of the war, the Russian generals strongly blamed their defeats on the lack of sufficient heavy artillery. So maybe Japan let itself be talked round to support its old foe. After all, Japan did fight on the allied side.
- A Russian booty of the Russian-Japanese war (seems unlikely, and too easy anyway)?
- A Japanese gun from Liaodong, handed over to Russia after the Japanese-Chinese war (seems unlikely too)?
I also remeber that the Japanese navy had some presence in the Mediterranean (one destroyer was torpedoed by a German submarine) but I dont have any more info about this. Did they transport equipment?