Offensive Strategies

• Ambush – An attack on an opponent, usually involving surprise.
  Blitzkrieg – A bombardment immediately followed by a lightning swift attack by mobile forces, named after the German World War II strategy.
  Charge – Direct attack, usually by running up to the opponent.
  Counterattack – An attack when an enemy has attacked, usually when the enemy is weak or complacent.
  Encirclement – To isolate and surround enemy forces.
  Flanking maneuver – This strategy involves attacking the opponent from the side, or rear, flank.
  Human wave attack – Humans used to attack in continuous waves, almost in a desperation move.
  Penetration – A direct attack through the enemy lines, then attack the rear once through.
  Pincer maneuver – Allowing the enemy to attack the center, sometimes in a charge, then attacking the flanks of the charge.
  Raiding – Attacking with the purpose of removing enemy’s supply or provisions.
  Siege – Continuous attack by bombardment on a fortified position, usually by artillery.
  Turning maneuver -An attack that penetrates an enemy flank, then curls into its rear to cut it off from home.
  Pincer ambush – A „U“ shaped attack, keeping the sides concealed and have the middle fall back. When the enemy advances the sides ambush them.
  distraction – An attack by some of the force on one or two flanks, drawing up to a strong frontal attack by the rest of the force.

Defensive Strategies

• Retreat
  Boxing maneuver A strategy used to „box in“ and force and attack on all sides at once.
  Withdrawal
  Fortification
  Fabian Strategy (Attrition warfare)
  Military district or also known as Wehrkreis in German.
  Turtling – Continuous reinforcement of an army until it has reached its full strength, then an attack with the now superior force.

Sources: Wikipedia Modified by Fanterazzi