Russian propagandists have issued a fresh nuclear bomb warning to the UK on state TV, calling for nukes to be dropped on London to teach Brits a lesson.

In a massive capability boost for US nuclear weapons, Secretary of Energy Chris Wright on May 19 confirmed that the Department of Energy’s National Nuclear Security Administration (DOE/NNSA) has completed production of the first B61-13 gravity bomb.

When we hear, think or visualise the most powerful weapon in the world, the nuclear bomb, we can easily imagine the massive power and energy it will unleash if it is ever used by any country. The world still shudders at the mere thought of the atomic bombings of the Japanese cities of Hiroshima and Nagasaki on 6 and 9 August 1945 by the United States.

While most of the world looked away, a new nuclear arms race has broken out between the US, Russia, and China, raising the risk of nuclear confrontation to the highest in decades.

The two nations, which have not held formal diplomatic relations for decades, have engaged in indirect talks to secure a new agreement that would limit Iran’s nuclear activities in exchange for relief

Speculation mounts that post-war taboo on nuclear weapons could soon be shattered by use of 'battlefield' missiles

Unlike other members of the B61 family of nuclear bombs that can be carried by fighters and bombers, the B61-13 will be certified only on a strategic bomber based in the U.S., the National Nuclear Security Administration (NNSA) said in the May 19 announcement.

Today, there are nine countries that officially possess nuclear arms, including India. But do you know which are the most powerful nuclear bombs ever built?

Iranian leader Ayatollah Ali Khamenei expressed doubt about his country's nuclear negotiations with the United States, saying he does not think the talks will come to a result, according to the official Islamic Republic News Agency.