The two countries are locked in a trial of strength over Iran's nuclear ambitions.

ECONOMIST: The axis of the formerly evil

Quite simply this is a trial of strength played out on the streets of Athens.

BBC: Greece: The moment of truth

Or will this rather techie issue become a trial of strength between Government ministers and parliamentary scrutineers.

BBC: Committees seek power over key hiring and firings

Can they really expect to win a trial of strength with Italy's legendarily stubborn (and sometimes violent) vested interests?

ECONOMIST: Italy��s reforms

This week Philippe Bodson, Tractebel's rebellious chief executive, ended a long trial of strength with Suez by offering his resignation.

ECONOMIST: Tractebel the intractable

The trial of strength between the finance minister and the central-bank chief was becoming increasingly embarrassing, as both prepared to depart on Thursday for Washington to attend a meeting of the International Monetary Fund.

ECONOMIST: Exit Siniscalco, scandalised | The

The poll showed that 67 percent of voters surveyed said his work as a trial lawyer was a strength, while only 27 percent viewed it as a weakness.

CNN: Poll: Edwards viewed favorably

The 2012 Tour was thought to be well-suited to Wiggins' strength as a time-trial rider, and the absence of contenders like Alberto Contador (banned) and Andy Schleck (injured) opened up the field.

WSJ: Tour de France: The Brits Rule World of Wheels - Bradley Wiggins