Has Russia’s Vladimir Putin pulled Barack Obama’s chestnuts out of the fire for a second time? Will the shaky cease-fire in Ukraine that began this weekend hold up and end a conflict that was threatening a nuclear war between the United States and Russia? The answer...

Last week President Obama sent Congress legislation to authorize him to use force against ISIS “and associated persons and forces” anywhere in the world for the next three years. This is a blank check for the president to start as many new wars as he wishes, and it...