WEISSENHAUS, Germany — Moldova’s foreign minister says the small eastern European country is on alert for any signs the conflict in neighboring Ukraine could spill across the border. Foreign Minister Nicu Popescu told reporters Friday on the sidelines of a G-7 foreign ministers’ meeting in Germany that “the situation is of course fragile, but it is nonetheless relatively calm. We do not face an acute military crisis today.” At the same time the government has been preparing for “the full spectru