Globalization positive: 1. An interconnected global economy makes trading much more easier, which is especially beneficial for developing countries that rely on their exports of raw materials to flourish economically.
Negative 2: Globalization has led to increased outsourcing of certain jobs deemed as unneeded in modern times. For example, manufacturing jobs in the United States have taken a massive hit as globalization becomes more prominent, since manufacturing can be done with cheaper labor in developing countries.
Negative 3: Globalization has led to increased xenophobia in modern times, with many native citizens of a country believing that they are forced to interact with foreign cultures and entities. This can be tied in with the new wave of populism that has swept throughout the global political stage, as seen in the rise of populist, anti-immigrant politicians like Donald Trump and Boris Johnson.
Globalization has led to a lower amount of armed conflicts because the global economy is largely interdependent - this means that an armed conflict between a few states could lead to major disruptions in the global economy as a whole, whereas in the past, wars would only fracture the economies of the warring parties.