Question

The development of the Hydrogen bomb in 1954 was MOST LIKELY a product of

Answer 1

The development of the Hydrogen bomb in 1954 was MOST LIKELY a product of the Hiroshima bomb. It was designed to develop an aircraft-deliverable thermonuclear weapon. It was codenamed Castle Bomb under Operation Castle.

Answer 2

Product of the Cold War it seems,

On 1949, US government received an official confirmation that the Soviet Union had developed a Nuclear bomb.

To maintain the upper hand, President Truman approved the development of the hydrogen Bomb, an equivalent to 500 Atomic Bombs.