Quantum physics works well with electromagnetic force and atomic forces.

You're working with forces that can tear this universe apart.

More than 2,000 American military advisers are working directly with Iraqi forces.

Most preservation efforts in the Pantanal seek to work with economic forces, not against them.

The Afghan soldiers came under attack as they were working with American forces.

They work on building sites, in headquarters and with expeditionary forces abroad.

So the Marines are working with other forces.

Researchers suspect that a constellation of genes, working in combination with environmental forces, triggers the disease.

These troops will work with Iraqi and tribal forces to up the pressure on the terrorists.

It needs to ensure that the most threatened refugees - usually those who have worked with American forces - can find safe haven here.