UKRAINE has foiled an alleged Russia plot to launch a string of false flag attacks on cities which could have been the prelude to invasion. Kiev claims it has dismantled a group of saboteurs who were being “coordinated by Russian special services” for the assaults. APMembers of Ukraine’s Territorial Defense Forces, volunteer military units as Kiev fears invasion[/caption] Ukraine’s security service the SBU said the group was planning assaults on city infrastructure in a bid to “destabilise” the border region. It comes amid repeated warnings over a potential false flag attack by Russia that would be used as a pretext for an invasion. The United States has warned that Moscow could manufacture an incident in Ukraine to be able to then frame an invasion as a justified response. Fears of war in the region loom large as Putin has sent more than 100,000 troops to the border with Ukraine. The world now sits on the brink of the largest conflict in Europe since World War 2. Boris Johnson last night urged President Putin to step back from the brink of a “painful, violent and bloody” invasion of Ukraine. The Prime Minister warned of Russian plans for a “lightning war” that could take out the capital Kiev. Nato ordered fighter jets and battleships to the conflict zone as President Joe Biden mulled plans to rush as many as 50,000 US troops into Eastern Europe to stop a bloodbath. And today, Defence Minister James Heappey warned there are already Russian-military linked figures in Ukraine. But he says Britain is fully behind Ukraine in the same way that it backed Poland in World War W, and saying the PM has sent them “more than just warm words”. Boris ruled out sending British combat troops but will provide weapon support for Ukraine and back a crushing raft of Western economic sanctions against Russia. Most read in News MAJOR SHOCK New evidence about chief Maddie suspect leaves investigators 'shocked' BITTER CHILL Snow to BATTER Britain 'within weeks' says Met Office as temps to DROP further CAKE & EAT IT PM held indoor birthday bash at height of lockdown in fresh partygate 'HEARTBROKEN' Tributes to 'absolutely amazing' lad, four, killed in off-road bike crash FAMILY MISFORTUNE 'UK's nicest plumber' does £170 shop for starving family as kids sobbed UNI GUN RAMPAGE Student killed & three injured after killer opens fire with shotgun at uni