I don't see much of an issue if they just want to have some soldiers marching or regular vehicles. That's not all that uncommon and drastically reduces the logistics, costs, security, ... as opposed to having loads of military hardware on display throughout the streets on roads that were never built to handle tanks and other heavily armored military hardware. And with the exception of France, those at least annual kind of displays of military hardware happen pretty much exclusively in those authoritarian and dictatorship states for obvious reasons.