maybe on the coastal regions far from that. let's get the reading now from the pentagon and jennifer griffin who is there. jennifer? >> vladimir putin's strategy is clear to those that have been watching it. he intends to take the entire country. his forces are coming in from three different axis and they're going to strangle these cities. we learned from a senior u.s. defense official that the department of defense established a deconfliction line with the russian ministry of defense march 1. he said "for the purposes of preventing miscalculation and military incidents and escalation." we learned that 90% of russia's invading forces are in ukraine and the cities of kyiv, kharkiv are seeing the heaviest fighting. we're told there's no indication that the russians have had to tap into reinforcements. that 40-mile convoy that we talked so much about is still largely stalled across the north. russians have been trying to make progress on kyiv, but they