One thing that I think doesn't get discussed that much is that military aid from NATO allies is great and all but providing tanks to Ukraine (for example) on the face of it, sounds pretty swell but unless troops are trained to operate that particular tank then they will be unable to be efficient and coordinated on the battlefield.

This varies depending on what is being provided. Obviously, for a gun, there's less of a learning curve than a missile battery or a helicopter which is of a significantly different design to what the Ukrainian military is experienced in operating in the theatre of war.

But there's a narrative that has developed in the mainstream audience in the west that you just plop down some additional tanks or what have you and it'll just *work*. But this is war, not some strategy game, and the average person doesn't seem to have any grasp of the realities on the ground.