From enforcing quarantines to pulling back from conflicts, priorities are shifting to deal with the emergency

TEL AVIV, Israel－The novel coronavirus pandemic has forced militaries and militias to adapt to an invisible enemy, even as traditional conflicts grind on.

Armies have had to enforce social distancing rules among troops while helping with national outbreak containment and postponing maneuvers.

On Thursday, Saudi Arabia declared a temporary halt to fighting in Yemen because of the pandemic, while in Libya and Afghanistan conflicts are intensifying despite the United Nations' appeals for a global cease-fire. An outbreak in poor or war-scarred nations would be particularly devastating.

Here is a look at how the outbreak affects some militaries and conflicts:

Defending borders

Before the pandemic, Israel's military kept tabs on the Iran-backed Hezbollah militia in Lebanon, carried out occasional airstrikes against Iran's military presence in Syria and retaliated for sporadic rocket fire from the Gaza Strip.

Now Israeli troops are being mobilized to help police enforce quarantines, assist the elderly or provide child care for health workers.

To prevent infections, the army canceled some weekend leave and isolated certain groups of soldiers.

Most training exercises have been canceled or delayed, though the air force conducted a drill with US forces－with each pilot isolated in his own fighter jet.

The army chief had to self-quarantine after coming in contact with a virus carrier, though he eventually tested negative.

The conflicts on Israel's frontiers persist. In late March, Syrian air defenses opened fire on missiles allegedly launched from Israeli warplanes.

The Israeli military said border defense remains its top priority.

"Our enemies are still at our borders and our civilians are still within sniper or anti-tank missile range," said Lieutenant Colonel Jonathan Conricus, a military spokesman.

The virus has spread to the Israeli-occupied West Bank and to Gaza, which has been blockaded by Israel and Egypt since the militant Hamas group seized control in 2007.

The long-simmering Israeli-Palestinian conflict now exists side-by-side with efforts to contain the outbreak.

Troops have carried out home demolitions in the West Bank, soldiers killed two Palestinians in clashes and a trickle of rockets has been fired from Gaza.

But the virus is also opening doors to limited cooperation. Israel has helped deliver test kits and other supplies to both the West Bank and Gaza. An Israeli-Palestinian committee is coordinating the movement of Palestinian workers and security forces in the West Bank.