Poland's Prime Minister Donald Tusk said an explosion on a railway line linking Warsaw to southeastern Poland was an "act of unprecedented sabotage."

Poland's Prime Minister Donald Tusk said Monday that an explosion on a section of railway line used for deliveries to Ukraine was an "unprecedented act of sabotage."

Today’s Warsaw is safer, wealthier, and happier than ever. You’ll encounter stylishly dressed locals, sophisticated shopping boulevards, and thoughtful museums covering World War II, Jewish