Why was France so unpopular with many countries in mid-1995?

Answer 1

In short, France conducted a new round of nuclear testing.

In detail: in June 1995, the French president agreed to and announced the last series of nuclear bomb tests, to be conducted in desertic atolls of the Pacific. Nuclear testing, especially atmospheric, was more and more contentious since the 'castle Bravo' US test in Bikini in 1954. The US strongly voiced their concerns at the time of the French experiments.

France ended its nuclear testing and ratified the 1996 CTBT (Comprehensive Test Ban Treaty) banning further nuclear testing. The Comprehensive Test Ban Treaty is still waiting to be ratified by six "nuclear" countries: China, India, Israel, North Korea, Pakistan, and the US.

To date, France has conducted a total of 210 tests, USSR has a total of 715, and the US carried a series of 1050 explosions.