Obama has sent a small number of US troops "temporarily" back to Lashkar Gah.

I said, years ago, that the Afghan government did not inspire enough loyalty to defeat the Taliban, and that the US could either keep propping it up or let it fall. Perhaps Obama really thought it could stand up without US forces. Or perhaps he wanted to let it fall, but couldn't go through with it. In any case, the US once again has the choice to either prop it up or let it fall.