The U.S. dollar rises modestly against major currencies ahead of the Federal Reserve’s first policy decision under new chair Kevin Warsh, with traders expecting potential volatility as markets adjust to the Fed’s approach and messaging. On Wednesday, the euro falls about 0.16% to around $1.159, and the British pound dips roughly 0.15% to about $1.34, while the dollar gains a small “safe-haven” boost. The move is linked to remarks by U.S. President Donald Trump indicating that a memorandum of understanding on Iran is not final and suggesting military action could resume if the situation does not meet his expectations. However, investors largely hold back on larger positioning because the main catalyst is the upcoming Fed meeting. The Fed is widely expected to keep policy unchanged at Warsh’s debut session, but market participants will scrutinize the policy statement, economic projections, and Warsh’s news conference for any signs that the Fed is moving away from an easing bias. The focus is on whether officials are becoming more hawkish due to inflation risks.