CAIRO – Egypt's powerful military is showing signs of growing impatience with the country's Islamist leaders, indirectly criticizing their policies and issuing thinly veiled threats that it might seize power again.

The tension is raising the specter of another military intervention much like the one in 2011, when generals replaced longtime authoritarian leader Hosni Mubarak after they sided with anti-regime protesters in their 18-day popular uprising.

The strains come at a time when many Egyptians are despairing of an imminent end to the crippling political impasse between President Mohammed Morsi and his Muslim Brotherhood group on one side, and the mostly secular and liberal opposition on the other.