North Korea conducts Hydrogen bomb test, its 6th nuclear test
North Korea on Sunday claimed to have tested an "advanced hydrogen bomb" capable of being mounted on an intercontinental ballistic missile, marking its sixth nuclear test. The test, which is being hailed as "a perfect success", is estimated to have had up to 100-kiloton yield, about four to five times stronger than the nuclear bomb dropped on Nagasaki in 1945.