
https://www.brookings.edu/wp-content/uploads/2021/04/FP_20210405_china_cyber_power.pdf

https://medium.com/@SmallArmsSurvey/urban-violence-or-urban-peace-why-are-some-cities-safer-than-others-8626435dd5c7

https://theconversation.com/nato-leaders-pledge-increased-defence-spending-is-this-really-the-price-for-peace-and-prosperity-255989