Romanian President Klaus Iohannis attends a news conference with NATO Secretary General Jens Stoltenberg (not in the picture) in Bucharest, Romania, Jan. 31, 2019. NATO stays the bedrock of the European security and the efforts of European Union (EU) for defence are complementary to and not competing with NATO's, the Alliance's Secretary General Jens Stoltenberg said here Thursday. (Xinhua/Cristian Cristel)