New Delhi, June 15 -- An expert likened the upcoming Group of Seven (G7) Summit in France to an "awkward family gathering...where you have to go to your in-laws, and there's an uncle that you don't quite like."

"No one wants to have a confrontation, even if things get quite passive-aggressive at times," Max Bergmann, the program director for Europe at the Center for Strategic and International Studies in Washington, was quoted by CNN as saying.

"But there's always the possibility that things might snap, and it might get rather dramatic," he reportedly added.

World leaders are gathering in a French spa town on Monday for a summit of the Group of Seven club of powerful democracies.

The G7 includes France, the United States, Canada, Germ...