for the latest, let's check in with abc's mary bruce. >> reporter: suspended, that's the message the u.s. and its international partners are sending to russia taking steps to exclude president putin from the g-8 and further isolate moscow. after talking for more than two hours in an emergency meeting, president obama and the g-7 leaders agreed to cut off russia's membership in the group of eight until moscow changes its course in ukraine. a summit meeting planned for sochi, russia, in june will now be held in brussels without president putin, but just as the u.s. tries to turn up the heat on moscow, the russian military is adding to their forces on ukraine's border. u.s. officials tell abc news that russia now has 30,000 troops at the ready. the u.s. and its allies worried about further escalation warn russia it faces severe economic costs if it takes any more steps to destabilize ukraine. here in the netherlands president obama holds a press conference later today where he's sure to face questions about whether these new steps are enough to sway moscow to back off. meanwhile, the ru