Source: The Great Interpretation of Dreams (Ibn Sirin)
(By analogy with a weapon and fortress) A tank in a dream indicates impenetrable power and a strong ruler. Riding it indicates gaining a position and protection. Destroying it indicates defeating an enemy.
Source: Perfuming Humanity in the Expression of Dreams (Al-Nabulsi)
(By analogy) A tank indicates a strong army or an impenetrable fortress. Seeing it indicates power and strength.
Source: Signs in the Science of Expressions (Ibn Shaheen)
(By analogy) A tank is interpreted as power and victory. Whoever sees himself riding one will gain power and victory.