For years, Israel contained its conflicts with Tehran, Hamas and Hezbollah. The broad assault on Iran highlights a shift in strategy.

As the attacks by Iran and Israel continue into their sixth day, here's a look at what we know about the conflict, and if the US will deploy troops.

By Alexander Cornwell, Parisa Hafezi and Trevor Hunnicutt TEL AVIV/DUBAI/WASHINGTON (Reuters) -Israel and Iran's air war entered a second week on Friday and European officials sought to draw Tehran back to the negotiating table after President Donald Trump said any decision on potential U.