US president says Russian leader believed he could break up Nato and EU

G7 leaders to hold call with Zelenskiy in show of unity before Victory Day events in Moscow

President Zelenskiy and CIA chief warn of nuclear threat from Kremlin

Forces appear close to reaching one goal

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US believes Russian warship was hit by Ukrainian missiles, defence official says

Reports indicates that senior Chinese officials had some level of knowledge of invasion

Concealable devices with ‘modest energy requirements’ which could emit pulsed electromagnetic energy and ultrasound exist

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President Tsai Ing-wen says Taiwan will do ‘whatever it takes’ to defend its freedom

Little evidence for theory of Russian agents using microwaves as illness hits officials around world

Dublin-born academic ‘will rally the international community’, says president-elect

Veteran diplomat served at US State Department for 33 years

Deaf to advice from all but his family, US president has mishandled every step of the crisis

Three men alleged to have had home-made explosives in possession in Co Louth last May

Talks proceed despite Israel’s boycott and the failure of US deputy secretary of state William Burns to arrive