From the Cost of War website
The (at least) $1.3 trillion of Department of Defense war spending in the past decade averages out to $130 billion per year. While these funds did indeed create jobs in the military and in related sectors, the opportunity cost of this spending is the additional jobs that would have been created if we had spent these funds on other domestic programs.
$130 billion per year could have created a net increase of jobs in other sectors: for example, more than 300,000 jobs in construction, or 900,000 jobs in education or about 780,000 jobs in healthcare, assuming here that the education funds are distributed to state and local governments to fund public education in primary, secondary, and higher education.
Key Findings War spending created fewer jobs over the last decade than would have other forms of federal spending
This is because war spending is less labor-intensive and more often goes overseas
An additional 300,000 jobs per year could have been created in construction
Instead, an additional 900,000 jobs per year could have been created in education
One and a half times as many jobs could have been created in home weatherization
more at the link-
http://costsofwar.org/article/lost-jobsmain page:
http://costsofwar.org/downloadable paper in pdf:
http://costsofwar.org/sites/default/files/articles/26/attachments/Garrett-Peltier%20%20Jobs.pdf