Blood.
Leonel seemed to see the next step before it even happened.
A dense gas was released across the battlefield. The wind billowed and spread it wildly, but even so, the density was so great that it continued to sink, moving forward like a grotesque algae throughout the battlefield.
The moment the gas touched the shields, they began to sizzle. The Force upon them was being suffocated. Every attempt at recovering was crushed and the shields began to crack, and very soon, some of the gas began to roll up and over the shields, descending down toward the dogs below.
There was no doubt. This was chemical warfare, and chemical warfare on such a large scale at that.