Something Odd Going On!!

It's a tad bit perplexing, What I seem to see, Russian soldiers in my backyard, Can this really be? And a Russian periscope, Protruding from the ground, How with this will I cope? I guess I'm not mentally sound... And why is there a Japanese bulldozer in my kitchen too, Is someone playing tricks? Is that someone you? And now a Sherman tank, Sits in my living room, "Hey, come on fellows, are you predicting my eminent doom? Now I've seen it all, Cause what do you think, The mighty liner Titanic, Sailing in my sink!!