<div style="color: #222222; font-family: arial, sans-serif; font-size: 12.8px;"><span style="font-size: 12.8px;">The US and Russian leaders opened a historic summit in Helsinki today with Donald Trump promising an extraordinary relationship and Vladimir Putin saying it was high time to thrash out disputes around the world.   </span></div>''<div style="color: #222222; font-family: arial, sans-serif; font-size: 12.8px;"><br />''</div>''<div style="color: #222222; font-family: arial, sans-serif; font-size: 12.8px;">They exchanged opening remarks in front of the press at the start of the summit in Helsinki.  Putin said the time has come to talk in a substantive way about the relations and problem areas of the world.  Trump said the summit would cover everything from trade to military to missiles to nuclear to China.</div>''<div style="color: #222222; font-family: arial, sans-serif; font-size: 12.8px;"><br />''</div>''<div style="color: #222222; font-family: arial, sans-serif; font-size: 12.8px;">The summit would cover nuclear disarmament, said Trump, who has bridled at the rapid expansion and modernisation by Putin of Russia's nuclear arsenal.</div>