Forum:Multiple War Chariots

I had 2 Gladiator Beast War Chariots face down. My opponent special summons Dark Armed Dragon and activates its effect on my face up Gladiator Beast monster. I chain to Dark Armed Dragon's effect with War Chariot. My opponent chains to War Chariot with a Seven Tools of the Bandit. Can I activate the 2nd war chariot on Dark Armed Dragon? Or is it too late to use it?