More than in past wars, many wounded troops are coming home alive from the Middle East. That’s a triumph for military medicine. But they often return hobbled by prolonged physical and mental injuries from homemade bombs and the unremitting anxiety of fighting a hidden enemy along blurred battle lines. Treatment, recovery and retraining often can’t be assured quickly or cheaply.

These troops are just starting to seek help in large numbers, more than 185,000 so far. But the cost of their benefits is already testing resources set aside by government and threatening the future of these wounded veterans for decades to come, say economists and veterans’ groups.

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