WASHINGTON — The wars in Ukraine and the Middle East are eating away at critical U.S. weapons stockpiles and could hamper the military's ability to respond to China should a conflict arise in the Indo-Pacific, the top U.S. commander for that region said Tuesday. Head of U.S. Indo-Pacific Command Adm. Samuel Paparo cautioned Tuesday that the U.S. providing or selling billions of dollars worth of air defenses to both Ukraine and Israel is now impeding his ability to respond in the Indo-Pacific,