Leopard 2, first production batch. Only the first 200 examples had the PZB 200 image intensifier and the wind sensor. However it looks slightly modified/upgraded. Might be a preproduction machine, or a prototype.
No wait! Those blasted Japanese have done it again and copied a German machine (I though they stuck to just cars). It's a Type 90. Well, to be fair the Type 90 was developed with the help of the Germans and it has the same Rheinmetall gun.