In a major foreign policy address, President Barack Obama has said that the United States is "unrivalled in history":
ITV News' Washington correspondent Robert Moore reports:
Obama: US is the hub of alliances unrivalled in history...America is where the world looks to for help. We are the one indispensable nation.
Obama: Just because we have the best hammer does not mean that every problem is a nail.
More top news
Very windy with gales possible