US President George W. Bush vowed Tuesday that the United States will continue its fight against terror through every hardship despite the bombing of United Nations headquarters in Iraq.
"All nations of the world face a challenge and a choice. By attempting to spread chaos and fear, terrorists are testing our will," Bush said in a statement in Crawford, Texas, where he is spending his holiday.
"Across the world they are finding that our will cannot be shaken. We will persevere through every hardship, we will continue this war on terror until the killers are brought to justice, and we will prevail," the US president said.
Bush said he had directed Paul Bremer, the supreme US civil administrator in Iraq, to "provide all possible assistance for the rescue and recovery effort at the United Nations headquarters."
He said he also spoke to UN Secretary-General Kofi Annan about the personal loss the world body has suffered, about the assistance the United States has offered, and about the vital work in Iraq that continues.
Bush issued the statement after at least 16 people were killed and dozens more injured in a massive car bombing which devastated the UN headquarters in Iraq.