US President Donald Trump is following his own tactics outlined in his book 'Trump: The Art of the Deal' as he shakes up the world, including Gaza, Ukraine, Greenland, Canada, Mexico, Panama, and the EU. The book advises thinking big, focusing on risks, and maximizing options. Trump's recent presidential tax action supports the OECD Global Tax Deal, which aims to make multinational groups pay a minimum corporate income tax of 15% on their global profits. However, the US wants to collect its share of tax revenues from American multinationals parking profits offshore. The Trump administration is also imposing higher tariffs on imports, potentially affecting after-tax returns for investors and businesses worldwide.