wars history 17 tanks 4 weapons 4 railway transport 4 international terrorism 3 armed conflict 3 more ... computer security 3 computer attacs 3 military aircrafts 3 military operations 3 military affairs 3 chemical weapons 2 drugs (chemistry) 2 dějiny 2 geography 2 local war 2 military weapons 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 technology 2 air force 2 vojenské zbraně 2 less ...