President Barack Obama and British Prime Minister David Cameron vowed Wednesday to keep the pressure on Libyan dictator Moammar Gadhafi, as anti-government protestors continue to face violent attacks from his regime.
The U.S.-backed NATO coalition launched an attack on Gadhafi's stronghold in Tripoli, Wednesday. He's withstood two months of air attacks as rebels try to remove him from power.
"That's why we'll continue to enforce U.N. resolutions with our allies and why we restate our position once more," Cameron said. "It is impossible to imagine a future for Libya with Gadhafi still in power. He must go."
Cameron added that he believes the Libyan leader will eventually have no choice but to step down.
President Obama stressed that more "patience and persistence" will be required during the campaign against Gadhafi. He didn't set a deadline for the military assault's ending, but promised efforts would be over in a timely fashion.
“I think there may be a false perception that there are a whole bunch of secret, super-effective air assets in a warehouse somewhere that can just be pulled out and that would somehow immediately solve the situation in Libya,” Obama said. “That’s not the case.”
Cameron's stance with the president came after two days of emphasizing the "essential" relationship between the U.S. and U.K.
While addressing both houses of the British parliament at Westminster Hall Wednesday, Obama said that while this relationship would "change with the times," the alliance between the two countries would remain strong and indispensible.
"As I said the first time I came to London as president for the G-20 summit, the days are gone when Roosevelt and Churchill could sit in a room and solve the world's problems over a glass a brandy," the president said.
"In this century our joint leadership will require building new partnerships and adapting to new circumstances, and remaking ourselves to meet the demands of the new era," Obama added.
"Even as more nations take on the responsibilities of global leadership," the president said, "our alliance will remain indispensible to the goal of a century that is more peaceful, more prosperous and more just."
Obama, the first U.S. president granted the honor of speaking before the British Parliament, received a standing ovation.
Earlier Wednesday, Cameron and the president tried their hand at ping pong with some local school students.
Tuesday, the president also met with Prince Charles and the Duchess of Cornwall and attended a state dinner at Buckingham Palace hosted by Queen Elizabeth II.
"To your Majesty, the Queen -- the vitality of our special relationship between our people," Obama said during his toast at the dinner.