U.S. surveillance flights are buzzed by Chinese fighter jets armed to the teeth. The Air Force conducts more than 150 bombing raids on the ISIS army in Iraq. President Barack Obama sends 1,000 troops to protect the embassy in Baghdad. NATO leaders wonder if they’ll have to mobilize to defend against Russian aggression. Everywhere you look, there’s military activity or the potential for more of it. How does all this play out when the U.S. defense budget is flat or shrinking? And the military’s technical leadership eroding? Todd Harrison, senior fellow for Defense Budget Studies at the Center for Strategic and Budgetary Assessment, joined Tom Temin on the Federal Drive with answers. Read the related story.