Washington - Russia has placed its role in diplomatic and global economic affairs at "risk" with the military campaign in Georgia, US President George W Bush said Wednesday, as he announced a US mission to provide humanitarian relief in the former Soviet republic.

Bush accused Russia of continuing military operations inside of Georgia despite a ceasefire agreed to on Tuesday by taking up positions near key Georgian cities and threatening the capital Tbilisi.

"Unfortunately, we're receiving reports of Russian actions that are inconsistent with these statements," Bush said after meeting with his foreign policy team at the White House.

A US military C-17 cargo plane was flying to Georgia with supplies and the US Navy would play a role in the humanitarian mission to demonstrate "solidarity" with the Georgian people, Bush said.

"We expect Russia to honour its commitment to let in all forms of humanitarian assistance," Bush said.

The United States has supported greater Russian integration into the diplomatic, political, economic, and security structures of the 21st century, Bush said.

"Now Russia is putting its aspirations at risk by taking actions in Georgia that are inconsistent with the principles of those institutions," Bush said.

Secretary of State Condoleezza Rice has been ordered to travel to the Georgian capital Tbilisi to demonstrate "unwavering" support for Georgia after first stopping in France to discuss the ceasefire brokered by President Nicolas Sarkozy.

"On this trip, she will continue our efforts to rally the free world in the defence of a free Georgia," Bush said.

The conflict began when Georgian President Mikheil Saakashvili ordered troops into the breakaway region of South Ossetia to quell attacks by separatists leaders backed by Moscow.

Russia responded with a military onslaught deep into Georgian territory outside of the disputed South Ossetia. Fighting quickly spread to Abkhazia, a second secessionist region.

Bush demanded Moscow immediately adhere to the truce and begin removing troops from the Caucasus republic. Russia must honour statements that it has no intention of removing Saakashvili's pro- Western government, Bush said.

"The United States stands with the democratically elected government of Georgia and insists the sovereignty and territory of Georgia be respected," Bush said.

Bush said Russian troops have been positioned outside the key city of Gori and the port city of Podi, giving them control of key transportation routes and the ability to "divide the country and threaten the capital Tbilisi."

Bush, after returning from the Olympic Games on Monday, warned that Russia was harming its relations with the United States and Europe, and on Wednesday urged Russia to take steps to repair the damage.

"To begin to repair the damage to its relations with the United States, Europe, and other nations, and to begin restoring its place in the world, Russia must keep its word and act to end this crisis," Bush said.

Bush did not say when Rice would depart Washington.

The United States and Georgia have become close friends under the Bush administration and, at the urging of the White House, NATO earlier this year announced its intention to invite Georgia and Ukraine, another former Soviet Republic, into the alliance.

The move angered the Kremlin, which worries about NATO's eastward expansion closer to its borders.

Russia has also been angry about US plans to station a missile- defence system in former Soviet satellite states Poland and the Czech Republic. Moscow also objected to Kosovo's independence from traditional ally Serbia and responded that it could set a precedence for Abkhazia and South Ossetia to move in a similar direction.