(BRUSSELS) — Visiting a city he once called a “hellhole” to meet with the leaders of an alliance he threatened to abandon, President Donald Trump will be in the heart of Europe on Thursday to address a continent still reeling from his election and anxious about his support. Trump is slated to attend his first meeting of NATO, the decades-long partnership that has become intrinsic to safeguarding the West but has been rattled by the new president’s wavering on honoring its bonds.