Key questions in conflict
l Why is it a contentious issue?
The status of Jerusalem has long been a sensitive issue in the Israeli-Palestinian conflict, and is considered disputed territory by many countries.
Both Israel and Palestine claim Jerusalem as their capital, but neither is internationally recognised.
In 1980, Israel passed a law declaring Jerusalem to be Israel’s “complete and united” capital, but the United Nations Security Council passed a resolution it would not recognise the law.
Palestinians, see east Jerusalem, which Israel captured in 1967, as their capital.
l Have any countries ever had their embassies in Jerusalem?
A number of countries used to have their embassies in Jerusalem, but this changed after the UN Security Council resolution in 1980.
Costa Rica and El Salvador were the last to move their embassies out of the holy city in 2006, joining all other embassies in Tel Aviv.
l Why has Mr Trump decided to recognise Jerusalem as Israel’s capital?
The US president said he believed the decision to be “in America’s interests”, and marked a “new approach” to the conflict between Israel and the Palestinians.
Mr Trump said he was not delivering any verdict about where an IsraeliPalestinian border should lie.
l What has the international reaction been?
Leaders across the world have condemned Mr Trump for recognising Jerusalem as Israel’s capital, over fears it could worsen tensions in the volatile Middle East.
l What will happen next?
Mr Trump plans to move the US embassy in Israel from Tel Aviv to the holy city. But in the short-term, there are fears the decision could spark violent protests.