This assignment delves into the pressing issues of global security and justice in the 21st century. It analyzes various challenges such as terrorism, separatism, extremism, corruption, regional conflicts, crime, ecological catastrophes, and nuclear proliferation. The influence of globalization on these issues is explored, along with the crucial role played by the United Nations in addressing them. The text also highlights the widening gap between rich and poor, exacerbated by corruption, which disproportionately affects developing nations.