Addressing the World Economic Forum (WEF) where several leaders have took him on for his alleged protectionist and inward-looking policies, Trump said America is "open to business" and competitive again.
He also said the US would keep up its fight against terrorism across the world and would not let Afghanistan become a haven for terrorists again.
"I am here to represent the interest of American people and to commit their support for a better world," Trump said after a traditional Swiss brass band welcomed him on the stage.
Talking about America and his various decisions, Trump said, "The stock market is smashing one record after another, and has added more than USD 7 trillion in new wealth since my election".
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Stressing that there cannot be free and open trade if some country does not follow the rules, Trump said, "We support free trade but it has to be fair and reciprocal".
As president, Trump said he would always protect the interests of his country, workers and companies.
"Can we create a system that works for not just one country but for all others... We have agreements with so many other countries and will be negotiating with many others," he noted.
The tax cut bill is expected to raise the average American's household income by more than USD 4,000, he added.
The US is lifting self-imposed restrictions on energy production to provide affordable power and promote energy security, he said, adding that no country should be held "hostage" to a single provider of energy.
Taxes are being cut, burdensome regulations are being eliminated and bureaucracy is being reformed, Trump added.
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