Rubio said any exclusion of U.S. companies from European tenders would be seen negatively by Washington, which those two sources interpreted as a reference to the proposed EU rules.
One northern European diplomat, who was not part of the Baltic meeting, said they had also been recently told by U.S. officials that any exclusion from EU weapons procurements would be seen as inappropriate.
Rubio plans to discuss expectations that EU countries keep buying U.S. weapons during his visit to Brussels this week, where he will attend the NATO Foreign Ministers Meeting, said a senior State Department official.