Here’s a look at tomorrow’s top talkers from Washington Post reporters and columnists who know the topics best.

ISLAMIC STATE THREAT: Late Monday, America’s top general said Islamic State cannot be defeated without addressing “both sides of what is essentially at this point a nonexistent border” between Iraq and Syria, reports Karen DeYoung and Dan Lamothe. Adam Taylor looks at how the Islamic State is turning the Middle East upside down with enemies sometimes looking like potential allies. Charles Krauthammer argues U.S. airstrikes can make a difference, saying “The Islamic State is overstretched. It’s a thin force of perhaps 15,000 trying to control a territory four times the size of Israel. Its supply lines, operating in open country, are not just extended but exposed and highly vulnerable to air power.” David Ignatius writes “stopping that evil is a harder task. As the United States has witnessed over the past decade, the obsession to counter terrorism can drag a country into unwinnable wars and immoral acts.”

RUSSIAN AID CONVOY ENTERS UKRAINE: NATO said Friday that Russian artillery pieces are firing at the Ukrainian military from Russian territory and within Ukraine, dramatically escalating a conflict that has taken a new turn with the unauthorized entry into eastern Ukraine, reports Karoun Demirjian and Michael Birnbaum. Birnbaum spoke with refugees in a camp in the Luhansk region, finding that the first thing the camp offers new arrivals is a shot of cognac and a chance to talk to a counselor. Many in the camp said that they stayed in Luhansk as long as they could but that the shelling simply become too intense. Adam Taylor looks at the foreign fighters who’ve flocked to Ukraine and become involved in the conflict.

FERGUSON LATEST: Gov. Jay Nixon ordered the Missouri National Guard to begin withdrawing from Ferguson Thursday, the clearest sign yet that the violent clashes between police and residents may be subsiding after nearly two weeks of civil unrest, reports Carol Leonnig and William Branigan. DeNeen Brown looks at how the violence has revealed a generational divide between traditional civil rights-era activists and young protesters, who are organizing on their own, fueled by rage, mobilized by social media. MSNBC host Touré examines the burden of the perfect victim, writing “when there’s a black victim involved, the information takes a different and predictable turn: The victim becomes thuggified.” Salinas, California could have been Ferguson. Police Chief Kelly McMillin on why it wasn’t and the tricky process of rebuilding trust with the community.

MCDONNELL ON THE STAND: Virginia’s former governor took the stand for a second day today, continuing to lay out the timeline of his relationship with Williams, including events that occurred in 2012. Eugene Robinson asks of McDonnell: how far would you go to stay out of jail? “The answer seems to be: as far as necessary.”