The global dollar experienced significant strengthening against various other currencies, triggered by several economic and geopolitical factors that influenced world financial markets. The dollar’s existence as a global reserve currency makes it the primary benchmark in international transactions. This is especially visible in the relationship between the US dollar and currencies such as the euro, Japanese yen and pound sterling. One of the main causes of the dollar’s strengthening is tight monetary policy by the Federal Reserve. The repeated increases in the benchmark interest rate provide more attraction for foreign investors. Higher yields attract capital flows into the US economy, leading to increased demand for dollars. Investors tend to look for safer assets when global economic uncertainty increases, making the dollar the main choice. Furthermore, US economic data showing a strong recovery, such as increasing unemployment and optimism in the manufacturing sector, also contributed to the strengthening of the dollar. When positive data is released, the market usually reacts by buying dollars, resulting in a strengthening of its exchange rate against other currencies. For example, the euro and yen experienced pressure when market players assessed that the economic growth prospects in the euro zone and Japan were weaker compared to the US. The geopolitical impact cannot be ignored either. Rising tensions between major countries, including conflicts in the Middle East and tensions in East Asia, tend to make investors choose the dollar as a safe asset. When a crisis hits, the dollar often strengthens in reaction to the concerns sweeping the markets. In addition, ambitious fiscal policies in many countries to recover the economy after the pandemic could weaken local currencies. Countries like the UK and the eurozone struggle with high inflation and looser monetary policies compared to the US. This led to a decline in confidence in their currencies, triggering a shift of funds to dollars. Stock market movements also play an important role in strengthening the dollar. When the US stock market surges, it is often accompanied by a strengthening dollar, as investors tend to diversify their portfolios and invest in dollar assets. Conversely, fluctuations in global stock markets can put pressure on other currencies, such as the euro and yen. Market perceptions of economic stability also play a role in determining the value of the dollar. In difficult times, the stability and reliability of the US economy is seen as more favorable, making the dollar more desirable. Thus, the strengthening of the global dollar reflects not only the fundamentals of the US economy, but also external factors that influence overall market sentiment. Political uncertainty in several countries, such as general elections and policy changes, can also trigger exchange rate instability. Investors often pay close attention to these events, and as risks increase, they tend to move to dollars. With the complex interaction between domestic and foreign factors, the strengthening of the dollar remains an interesting phenomenon to observe. While the dollar is strengthening against other currencies, it is important for economic actors to remain alert to changes that may occur in international markets.