wars history 17 tanks 4 international terrorism 3 armed conflict 3 computer security 3 computer attacs 3 more ... military aircrafts 3 military operations 3 weapons 3 railway transport 3 drugs (chemistry) 2 dějiny 2 geography 2 local war 2 religious conflicts 2 armoured vehicles 2 civil war 2 hand firearms 2 political development 2 regional geography 2 sociology 2 social geography 2 raw materials 2 military affairs 2 data security 2 alchemy 1 army 1 astronomy 1 security policy 1 less ...