As Russia flounders on the battlefields of Ukraine, the once-unthinkable possibility of nuclear weapons use is now on the rise, as President Vladimir Putin’s options for victory narrow. Tactical nuclear weapons have not been part of strategic thinking since the end of the Cold War in 1991. What are these weapons and what would be the significance of their use?What Are They? Tactical nuclear warheads were created to give military commanders more flexibility on the battlefield.

Five global nuclear powers pledged Monday to prevent atomic weapons spreading and to avoid nuclear conflict, in a rare joint statement setting aside rising West-East tensions to reaffirm a goal of a nuke-free world."We believe strongly that the further spread of such weapons must be prevented," said permanent UN Security Council members China, France, Russia, the UK and the United States, adding: "A nuclear war cannot be won and must never be fought."The statement was issu

Pope Francis led an impassioned mass for tens of thousands of emotional worshippers at a packed Bangkok stadium Thursday, urging respect for prostitutes and trafficking victims in a part of the world where sex work is rampant.The remarks came at the end of a whirlwind day of meetings for Pope Francis, who is on his first trip to Buddhist-majority Thailand where he is carrying a message of religious harmony and peace.He heads to Japan next, visiting the twin atomic bombs sites of Nagasaki and