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Good morning.

Here’s what you need to know:

• The battle for Ramadi.

Iraqi forces are fighting Islamic State militants for control of Ramadi, the crucial western provincial capital. For the first time in months, Iraq’s military has reached the city’s center.

Regaining control of Ramadi would deliver the biggest loss for Islamic State militants since they began their expansion across Iraq last year.

• The migrant crisis.

Turkey is moving to shore up its borders at land and sea to slow the flow of refugees into Europe and foreign fighters into Syria.

President Obama is planning a U.N. summit meeting on the global migrant crisis. The number of migrants and refugees who entered Europe this year passed the one million mark this week.