Enhancement bonuses do not stack. Only the highest level member of the fleet will give the respective bonus.



Basic enhancement skills
========================

Armored Warfare
---------------

    Requires Leadership (1)
    Provides an increase to each affected ship's Armor HP of 2%/level.
    
    

Siege Warfare
-------------

    Requires Leadership (1)
    Provides an increase to each affected ship's Shield capacity of 2%/level.
    
    

Skirmish Warfare
----------------

    Requires Leadership (1)
    Provides an increase to each affected ship's Maximum Velocity of 2%/level.
    
    

Information Warfare
-------------------

    Requires Leadership (1)
    Improves each ship's maximum targeting range by 2%/level
    
    

Mining Foreman
--------------

    Requires Leadership (1)
    Increases each ship's mining yield by 2%/level
    
    

Advanced enhancement skills
===========================

    
   

Warfare Link Specialist
-----------------------

    Requires Leadership (5)
    adds 10%/level to the effectiveness of gang assist modules
    
    

Armored Warfare Specialist
--------------------------

    Requires Armored Warfare (5)
    Increases effectiveness of Armored Warfare link modules by 100%/level

    

Siege Warfare Specialist
------------------------

    Requires Siege Warfare (5)
    Increases effectiveness of Siege Warfare link modules by 100%/level

    

Skirmish Warfare Specialist
---------------------------

    Requires Skirmish Warfare (5)
    Increases effectiveness of Skirmish Warfare link modules by 100%/level

    

Information Warfare Specialist
------------------------------

    Requires Information Warfare (5)
    Increases effectiveness of Information Warfare link modules by 100%/level

    

Mining Director
---------------

    Requires Mining Foreman (5)
    Increases effectiveness of Mining Foreman link modules by 100%/level


[Source](http://www.eve-wiki.net/index.php?title=Leadership_skills_overview)