The influential chairman of the Senate Armed Services Committee, Carl Levin (D-Mich.) who has returned from a fact-finding trip to the Middle East, also expressed support for arming the militant groups fighting against the government of President Bashar al-Assad.

“Increased military pressure on Assad is the only way to achieve a negotiated settlement in Syria, which in turn is needed to restore stability to a region that certainly doesn’t need any more instability,” Levin said Wednesday during a speech at the Carnegie Endowment for International Peace.

Levin conceded that the US public opposes an increased involvement in the Syrian conflict and that there is “no consensus” on the issue on Capitol Hill.

Senator Levin and Senator Angus King (I-Maine) spent five days in Jordan and Turkey, talking to government officials as well as US diplomatic and military personnel about the conflict in Syria.

The two senators also met with militant leaders including Salim Idriss, the leader of the so-called Free Syrian Army (FSA), and visited refugee camps along the Syrian border.

In a joint statement on Tuesday, Levin and King said the US and its allies should arm and train the militants and consider “options for limited, targeted strikes at airplanes, helicopters, missiles, tanks and artillery.”

However they said they were not calling for American troops on the ground in Syria.

The senators noted that “doing nothing may be the worst option of all,” potentially destabilizing US allies in the region, including Turkey and Jordan, and threatening Israeli interests.

In a letter last month, Sen. Levin, Sen. John McCain, a Republican from Arizona and Democratic Sen. Robert Menendez of New Jersey called on President Obama to take "more decisive military actions" against Syria.

A recent opinion poll conducted by the Pew Research Center shows that the majority of Americans, 70 percent, are against US involvement in Syria’s unrest.