(Al Jazeera English: 0726 PST, March 29, 2011) World leaders have met at a summit in London to discuss the ongoing conflict in Libya, and possible outlooks both for the military intervention, and humanitarian and development aid going forward.

Here are excerpts from comments made by David Cameron, the British Prime Minister, Hillary Clinton, the US Secretary of State, and Ban Ki-moon, the UN Secretary-General.

Obama Defends Libya Action

(ITN News: 0037 PST, March 29, 2011) President Obama appears on US television to defend the military action being taken in Libya.

(Al Jazeera English Headlines: 1700 PST, February 17, 2011) The U.S. and President Barack Obama continue to waver in their position regarding the unrest sweeping through the Middle East. The country says it will not dictate events in the region. But Obama has criticized the Iranian government's violent response to protests there, while at the same time maintaining a more neutral tone with Bahrain.

Many find the US's response disappointing, and some feel the White House will only react strongly to those governments it does not have a stake in. Al Jazeera's Patty Culhane reports.

(ITN News: 1600 PST, February 14, 2011) U.S. Secretary of State Hillary Clinton expresses support for opposition protesters rallying in Iran.

(Associated Press 1700 PST, February 3, 2011) Secretary of State Hillary Rodham Clinton condemned "in the strongest terms" the pro-government mobs that beat, threatened and intimidated reporters in Cairo.

Click here for important background information on the unrest in Egypt.