Kathmandu. As the escalating tension and war between the United States and Iran enter their fourth week, its direct impact is being seen in Asian stock markets. Major stock markets across Asia experienced a sharp decline at the start of trading on Monday.Fear has spread among investors after both countries warned of further intensifying the war against each other. As a result, Japan's main market index, the Nikkei 225, fell by 4.8 percent at the start of trading.Similarly, South Korea's stock market was also severely affected. Its main index, the KOSPI, saw a decline of more than 5.5 percent.Amid the...