This is the first time in three years that the US military has been sent into that conflict zone, and it represents a final failure of Obama's Afghanistan policy. The outgoing president promised that by the end of his second term, the US military would only be present in small numbers and only on embassy duty. But more than 8,000 US troops will remain in Afghanistan as he leaves office.

When President Obama was first elected he swore that he would end the US presence in Iraq (the "bad" war) and increase US presence in Afghanistan (the "good" war). He ended up increasing troops to both wars, while the situation in each country continued to deteriorate.

Why are the Marines needed in the Helmand Province? Because although the foolish and counterproductive 15-year US war in Afghanistan was long ago lost, Washington cannot face this fact. Last year the Taliban controlled 20 percent of the province. This year they control 85 percent of the province. So billions more must be spent and many more lives will be lost.