Nuclear weapon

North Korea detonated its sixth and most powerful nuclear test on Sunday, Japan and South Korea said, hours after Pyongyang said it had developed an advanced hydrogen bomb that possesses "great destructive power".

The recent flight tests of an upgraded nuclear bomb in the Nevada desert mean that the United States is preparing for war, military analyst Oleg Glazunov told Sputnik.

Despite posing no direct threat to Russia, the recent test of the bomb "means that the Americans are preparing for war", Glazunov said.

North Korea has increased its efforts to produce parts for a new nuclear reactor it is building while continuing to operate the main existing one that provides fuel for its atom bombs, the U.N. nuclear watchdog has said in an annual report on Friday, Reuters Reported.

The Indianapolis was destroyed returning from its secret mission to deliver parts for the atomic bomb which was later used on Hiroshima, reported BBC. 

The US warship was discovered 18,000 feet (5.5km) beneath the surface.

Microsoft co-founder Paul Allen, who led the civilian search team, said the discovery was "truly humbling".

South Korean President Moon Jae-in said on Thursday U.S. President Donald Trump has promised to seek Seoul's approval before pursuing any option against nuclear-armed North Korea, Reuters reported.

Trump's recent aggressive comments about deploying possible military options underscored his resolve to counter the threat from the North's nuclear weapons and missile programs. 

The fear of another nuclear bomb attack is growing on the 72nd anniversary of the US atomic bombing of Nagasaki, Japan, the city’s mayor said, apparently referring to the North Korean nuclear threat in the region.

Japan celebrated the 72nd anniversary of the Hiroshima nuclear bombing, the world's agencies said on Sunday.

The U.S. should move its nuclear weapons from Incirlik Air Base and start looking for alternatives to the longtime military hub in Turkey, a country that can no longer be fully relied on, analysts and former military officials said.

The U.S. military maintains about 50 nuclear warheads at Incirlik, according to nuclear watchdog organizations.

The standoff over North Korea’s nuclear program has long been shaped by the view that the United States has no viable military option to destroy it. Any attempt to do so, many say, would provoke a brutal counterattack against South Korea too bloody and damaging to risk.

The nuclear threat around the world is becoming a very pressing issue no matter the fact that the number of weapons is decreasing. This is the conclusion of an extensive analysis done by the Stockholm Research Institute SIPRI that investigates the issues of world peace. The publication states that the numbers of war heads is declining.