Nigeria, March 3 -- President Donald Trump has said the US and Israel's war with Iran could last about four weeks.

Mr Trump, who spoke at the White House on Monday, said US action against Iran was a necessity as the country's nuclear programme was "growing rapidly and dramatically, and this posed a very clear, colossal threat to America and our forces stationed overseas".

Mr Trump also declared that the war could last longer than four weeks and pledged that Washington will do whatever it takes to destroy Tehran's missile and nuclear capabilities.

"The regime already had missiles capable of hitting Europe and our bases, both local and overseas, and would soon have missiles capable of reaching our beautiful America," Mr Trump said.

He a...