Instead of Ukraine and Donald Trump's tariff war, the main subject of discussion for world leaders will be the Middle East.

NEW YORK (Reuters) -Dual risks kept investors on edge ahead of markets reopening late on Sunday, from heightened prospects of a broad Middle East war to U.S.-wide protests against U.S. President Donald Trump that threatened more domestic chaos.

Sen. Chris Murphy (D., Conn.), who sits on the Senate Foreign Relations Committee, said Israel’s attack on Iran was intended to thwart the Trump administration’s negotiations with Iran, and risks a regional war.

Israel’s leader and President Trump appeared to bet they can persevere, but other world leaders warned of unintended outcomes in a volatile region.

Israel’s attack on the Iranian nuclear program and its ballistic missile sites threatens to spark wider fighting in the Middle East that risks drawing in the US, according to Bloomberg Economics.

Gold is shining as Treasurys remain under pressure — but it’s probably too soon to write off U.S. debt as a safe-haven asset.

Anger is mixed with worry as Iranians in the capital of Tehran have woken up to images of their country’s retaliatory attacks on Israel