Although the agreement to press ahead with new police action represents a breakthrough, the situation remains very sensitive.

Creating a robot with the deftness of touch to pick strawberries represents a breakthrough.

Rather than representing a breakthrough, it found that higher participation among young voters in the 2017 general election was a return to longer term trends.

It represents a breakthrough in the long campaign to reduce locomotive-deer collisions and the delays and inconvenience to passengers that they bring.

These results represented a breakthrough for the athlete, who had previously struggled to make an impact at major competitions.