What are some major inventions of this century catalyzed by war?

Question

oh crap, i meant last century.

Answer 1

Laser is being developed to be effectively used in warfare.

Answer 2

Waterboarding

Answer 3

This century? Ask me in 30 years.

Last century:
1) nuclear power
2) the U.S. interstate highway system

Answer 4

Tank, and the treads which come with it.

Answer 5

World War 1
==========
Chemical industrial practices
Chemotherapy and Biomedical Research (Chemical/Biological weapons)
Statistics (prior to the war did not exist as an effective tool used by governments and companies)
Cryptography (making secret codes, used for commerce today)
Electronics and regional electronic communications
Mass Production (perfected for specific uses)
Directed Industry (directing industries at the national scale)
Logistics (moving massive amounts of stuff)
Heavy manufacturing and industrial production methods (for war machine productions - tanks etc).
Aircraft production (first scout aircraft)

World War 2
==========
Nuclear weapons and industry (Subs, Reactors and Weapons)
Rocketry (Short Range and Long Range nuclear weapons)
Remote Sensors (Radar/Teloscopy/Astronomy/Guided Weapons/Television)
Refined Chemical Processes (Advanced plastics)
Advanced Materials development (Aluminum, heat sheilding, fuels, composite materials)
Aviation Industry, Jet Aircraft, Aerodynamics, Rocketry, Space Flight
Heavy Industry for Resource Extraction (Semi-Automated Mining, Rigging and resource development)
Quantitative mathematical modeling - (Statistics applied to non-theortecial problems - such as bombing effectiveness, death rates, projected death and damage estimates etc)
Mercantilism - Quantitative mathematical methods applied to market problems in the economy.
Cryptanalysis - Codemaking and Codebreaking
Computers - Programmable electronic computers
Algorithms - Theoretical constructs allowing for processes to be broken down into components and repeated by automated processes.
Industrial Medicine - Mass production of biological agents (Pencillin etc).
Industrial Farming - Mass production techniques to produce
massive increases in farm yeilds by using petrochemicals.
Think Tanks - Organizations specifically designed to identify and solve problems for governments, existing outside the specific control of a national entity.
Corporate Marketing - Psychology and Marketing methods developed as propoganda methods during the war have been hyper-refined to anticipate our consumer interests before we even know we have them.
Environmentalism - Social reaction to government or corporate interests which are not in the interests of the "people".
Professional Politicians and Diplomats - Largely professional politicians and diplomats did not exist as an "industry" unto themselves until after the rise of the 3rd Reich.

Current Wars
==========
- metamaterials - capable of performing some action in adition to being worn or used as armorment
- practical cloaking materials
- practical reactive materials
- massively parallel decryption (realtime data availability) for decoding any encoded e-mails and electronic communications generally in near-real time.

- quantitative citizenry analysis (using advanced computer models data mining and available computer records from commerical interests , banks, stores to form detailed profiles of US / UK citizens. (ostensibly designed to "catch terrorists", it's now used to track and trend citizens activities and actions).

- use of bioweapons/and or improvised industrial devices as weapons of mass destruction by non-state actors.
- degraded rights and privledges
- reclassification of citizens as terrorists at the discretion of the president.
- use of rendition, reloation or disappearance towards prisoners/terrorist.
- use of non-lethal weapons in combat.
- development / use of high-energy particle/energy projection weapons (xray laser beams, particle beams)
- development / use of remote agent combatants - armed remote control robots or remote control tanks, armed radio control aircraft/jets.
- development of machine intelligence to allow for fully or near fully automated tanks,aircraft or robots.
- use of radioactive munitions in "conventional" warfare
- development of micro-nuclear weapons suitable for use against towns or segments of urban areas
- electro-magnetic-pulse weapons
- smart weapons
- highly portable computing - wearable computers
- ultra-long duration batteries
- portable solar power generation
- survivability gear - long duration/deployment water recycling
- genetic/ethnically selective bioweapons - disease agents genetically engineered to affect enemy ethnic groups.