What's with those logs on tanks?

A Visual Guide to the Ghost Army, Fake Fleets and Enemies Allies of World War II - Atlas Obscura

Russian forces get new batch of upgraded tanks

Tiger 1 - WW2 Tank Basics

Setting Up an Aquarium Log, Reef Builders

Log in Wwii vehicles, Tank, Wwii

MIGHTY MISERY

Military Vehicles & Tanks

Puzzled 3D Puzzle Tank Wood Craft Construction Model

Why do tanks have wood on the side? - Quora

Tank Archives: The Log

This Wacky Steam Locomotive-Car Hybrid Paved the Way for Tank Tracks

Lanmo PTO M4 Sherman Wooden Armour

are the Kontakt blocks below the log made of wood or are my eyes playing tricks? : r/TankPorn