Egyptian President Abdel Fattah al-Sisi on Monday ordered the army to join police forces in protecting vital state installations, in a decree also allowing military trials for civilians suspected of attacking state infrastructure following deadly attacks on soldiers.

The decree authorizes army presence at state facilities, including electricity towers, major thoroughfares and bridges, for two years during which these facilities will be considered military installations.

The decree came after Sisi promised a tough response to what he called an “existential threat” to Egypt posed by militants, following an attack Friday on an army checkpoint in the Sinai that killed at least 30 soldiers. […]