Your Monday Briefing

Thousands Flee Ukraine Into Romania

More than 150,000 people have fled Ukraine to neighboring countries.

Combate en Kiev: la resistencia ucraniana retrasa la invasión rusa

‘Everybody in Our Country Needs to Defend’

Ukrainian nationals in the U.K. answer a call to arms.

Demetrios Papademetriou, Top Immigration Scholar, Dies at 75

Stranded Soccer Stars, Frantic Phone Calls and a Race to Flee Kyiv

The C.D.C. releases new guidance that will allow localities to ease masking and social distancing.