America's Nobel Peace Prize laureate president, Barack Obama, who helped turn Libya into a failed state by toppling ruler Moammar Gadhafi, has started a new war in Syria and Iraq even as the U.S. remains embroiled in the Afghanistan war. Obama's air war in Syria — his presidency's seventh military campaign in a Muslim nation and the one likely to consume his remaining term in office — raises troubling questions about its objectives and his own adherence to the rule of law.

While it has become imperative to contain the Islamic State, a Sunni jihadist army that has imposed a despotic medieval order in the territories under its control, any fight against terrorism can be effectively waged only if it respects international law and reinforces global norms and does not become an instrument to pursue narrow, geopolitical interests.

Ever since America launched its "war on terror" in 2001 under Obama's predecessor, George W. Bush, the scourge of international terrorism, ominously, has spread deeper and wider in the world. Jihadist forces extolling terror as a sanctified tool of religion have gained ground in a number of countries. Once-stable nations such as Iraq, Syria and Libya have become anarchic, crumbling states and new hubs of transnational terrorism, even as the Afghanistan-Pakistan belt remains "ground zero" for the terrorist threat the world confronts.