Which country has developed the world’s most powerful laser?

As part of the EU's Infrastructure ELI project, Romania has created the strongest laser in the world. Known as the "Extreme Light Infrastructure-Nuclear Physics" (ELI-NP) laser, it is situated close to Bucharest in Magurele, Romania. It makes use of a novel technology called Chirped-Pulse Amplification, which was developed by Donna Strickland and Gerard Mourou, the winners of the Nobel Physics Prize. The French business Thales is in charge of the laser, which is anticipated to have ground-breaking uses in space exploration and medicine.