Nagasaki bombing anniversary draws calls for nuclear disarmament despite global tensions

The 78th anniversary of the atomic bombing of Nagasaki was commemorated amid heavy rains and scaled-back ceremonies.
Speakers urged nuclear disarmament but acknowledged the challenges in achieving it.
Japan seeks stronger nuclear protections from the U.S. due to threats from China and North Korea.
The bombing killed around 70,000 instantly with an estimated death toll of 90,000 to 100,000.
Some involved in developing the bomb expressed regret over its use on Nagasaki.