US President Barack Obama has said it was clear Russia "violated just about every commitment they made" in the Minsk agreement over the situation in eastern Ukraine.
"But Russian aggression has only reinforced the unity of the United States, Germany and our allies and partners around the world", Obama added.
German Chancellor Angela Merkel has arrived at the White House to discuss the situation in eastern Ukraine with US President Barack Obama.
Barack Obama is expected to ask congress to authorise the US military to use more force against Islamic State (IS) militants.
The President has been relying on congressional authorisations that President George W Bush used to justify action after 9/11.
He has been ordering airstrikes in Iraq and Syria for months but further details are being worked out over what America's next move is.
Republican House Speaker John Boehner said: "The president believes it sends a very powerful signal to the American people, to our allies, and even to our enemies, that the United States of America is united behind this strategy to degrade and ultimately destroy IS."
However, Mr Earnest declined to discuss specific provisions being discussed, such as how long the authorisation will last, what geographical areas it will cover and whether it will allow for the possibility of ground troops.
US President Barack Obama is due to meet Jordan's King Abdullah II later today, a source familiar with the situation told Reuters.
The king is cutting short a visit to Washington after news of the killing of a Jordanian pilot by Islamic State militants.
Robbie Keane and his LA Galaxy team-mates met Barack Obama following their Major League Soccer success.
India and the United States have broken an impasse standing in the way of civil nuclear trade, Indian media reports.
The breakthrough comes as Obama and Indian Prime Minister Narendra Modi met in New Delhi.
The reports said that the pair had ironed out differences on the liability of suppliers to India in the event of a nuclear accident and the United States had dropped its demand to be able to track the whereabouts of nuclear material supplied to India.
US President Obama was given an elaborate welcome at the country's presidential palace in New Delhi.
He walked in his socks to place a commemorative wreath honouring the father of India's independence movement, Mahatma Gandhi.
Tomorrow, Mr Obama was to be the guest of honour at India's Republic Day festivities, making him the first US president to attend the anniversary of the enactment of country's democratic constitution.
Barack Obama has arrived in India with his wife Michelle for a symbolic three-day visit of the country.
In a break from protocol, the US President and the First Lady were met on the tarmac by Prime Minister Narendra Modi.
The two leaders hugged warmly before the group posed for photographs.
Just a year ago, relations between the two countries were at an all-time low when a diplomatic row broke out over allegations an Indian diplomat in the US exploited her housekeeper - leading to the abrupt resignation of the US ambassador from India.
Obama will be the first US president to attend India's Republic Day parade and will host a radio show with Mr Modi.
"I'd like to think the stars are aligned to finally realise the vision (of) India and America as true global partners," Obama said in an interview with India Today, a weekly magazine, published on Friday.
It has been a week of historic diplomacy in the Cuban capital.
Tonight, the extraordinary changes taking place between the USA and Cuba are illustrated in the words of a Cuban man who is hailed as a hero in his country after being jailed in the US for spying.
He has told ITV News that he would welcome a visit to Havana by President Barack Obama.
ITV News' Washington Correspondent Robert Moore has this report:
President Barack Obama has expressed his personal condolences and the sympathies of the American people on hearing about the death of King Abdullah of Saudi Arabia. In a statement, he said:
As our countries worked together to confront many challenges, I always valued King Abdullah’s perspective and appreciated our genuine and warm friendship.
As a leader, he was always candid and had the courage of his convictions.
One of those convictions was his steadfast and passionate belief in the importance of the US-Saudi relationship as a force for stability and security in the Middle East and beyond.
The closeness and strength of the partnership between our two countries is part of King Abdullah’s legacy.