I believe Obama has presided over more deaths in these wars than Bush. This is certainly true of Afghanistan, and has been since 2010...
prove it
Gladly...
Robert Naiman: The Death Toll Does Not Lie -- Afghanistan Is Obama's War
US Deaths in Afghanistan: Obama Doubles Entire Bush-Era Total -- News from Antiwar.com
More U.S. Troops Killed in Afghanistan Under Obama Than Under Bush | MichaelMoore.com
U.S. Deaths in Afghanistan: Obama vs Bush | Just Foreign Policy
The 12-Year War: 73% of U.S. Casualties in Afghanistan on Obama's Watch | CNS News
And just for fun...
Obama Administration Sees Three Quarters of All U.S. Military Deaths in Afghanistan
Come on TM, I ponied up. It's time for you to come back with "BUSH!"