===============
INDUSTRIAL ERA
===============
(~mid 1800s through mid 1900s)



Nationalism -- -- -- -- Espionage - -- -- -- --	Guerilla War - -- -- -- Covert Warfare *
									   ^
									   |
									   |
Steel -- -- -- -- -- --	Industrial Navy - -- --	Submarine Warfare -- -- Amphibious War
				^					   |
				|					   |
				|					   |
Replaceable Parts -- --	Mass Production - -- --	Consumer Culture	   |
				|					   v
				|		Armored Warfare	- -- -- Combined Arms
				v	     /				   ^
Combustion  -- -- -- -- Motorized Transport 				   |
					     \				   |
						Flight - -- -- -- -- --	Aviation
									   ^
Scientific Method -- --	Electricity -- -- -- --	Electronics -- -- -- -- Radio




===========
MODERN ERA
===========
(~mid 1900s to 2000)



Rocketry -- -- -- -- --	Space Flight 					Integrated Defense *
					   \			/	     ^
			The Laser - -- -- -- --	Satellites		     |
	 	/			   /			\	     |
Computers - -- -- -- --	Miniaturization - -- -- Medicine		Smart Weapons
					   \				     ^
			Synthetics  -- -- -- --	Advanced Armor -- -- --	Stealth
		    /
Environmentalism  -- --	Recycling
		    \
			Alternative Energy
					     \
Fission	 -- -- -- -- -- Nuclear Power  -- -- --	Clean Power






===========
FUTURE ERA
===========
(post-2000 and onwards)



Genetics -- -- -- -- --	Cloning  -- -- -- -- --	Duplication
		   \			     /
			Mental Engineering
		   /			     \
Advanced Psychology 				Hive Brain
		   \			     /
			Artificial Intel.
		   /			     \
Robotics					Sentient Computers
						        v
			Fusion - -- -- -- -- --	Grand Unified Theory
		   /				        |
Advanced Energy						|
		   \					|
			Energy Weapons			|
			     v				v
Aerodynamics - -- -- -- Hover Armor -- -- -- -- Gravitic Flight