Egyptian President Abdel Fattah el-Sisi inaugurated the Octagon, a massive military command complex east of Cairo, on Saturday, capping years of military expansion that's raised concerns in Israel even as the two countries maintain their 47-year-old peace treaty. The facility covers roughly 22,000 acres and includes 13 strategic zones—dwarfing the Pentagon in both site area and built space—and arrives at a moment when the third year of the conflict in Gaza has strained relations between Jerusalem and Cairo to their lowest point in decades.
The Octagon isn't just a headquarters. It's a fortified city designed to project Egypt's regional ambitions through concrete and secure communications systems. The complex comprises eight interconnected octagonal buildings arranged around two central command structures, with about 50.5 million square feet of floor area—roughly seven times the Pentagon's 6.5 million square feet. Egyptian state information describes it as a hub for military command, crisis management, data exchange and coordination among state institutions.
A Peace Treaty Under Strain
Egypt and Israel share a 152-mile border that's remained one of Israel's quietest since the 1979 peace treaty. But the relationship has never truly warmed, and the war in Gaza has exposed deep disagreements. "It is not really cold peace as Israelis like to define it, but more like a cold war between the countries with no shots being fired," Lt. Col. (res.) Eli Dekel, a researcher of Israeli intelligence and infrastructure systems in Arab countries, told The Media Line. "What we are seeing is a marked deterioration in comments made in Egyptian media and by officials. Since the war, the amount of loathing and hate has skyrocketed."
Neither country has formally downgraded relations, but Egypt hasn't appointed a replacement for its former ambassador to Israel and has delayed approval of Israel's new envoy to Cairo. "Public diplomacy has grown increasingly confrontational, with Cairo adopting sharper rhetoric, pursuing legal and diplomatic pressure against Israel, and expressing concern over the trajectory of the war in Gaza," Mariam Wahba, a research analyst at the Foundation for Defense of Democracies, told The Media Line. "At the same time, many of the mechanisms that matter most, particularly security coordination, have continued because neither side can afford a complete breakdown. The result is a relationship that is politically colder but strategically resilient."
The Palestinian Relocation Question
Egypt has repeatedly warned against any scenario that would displace Palestinians from Gaza into Sinai. Those concerns intensified after US President Donald Trump floated proposals 1 year ago suggesting Gaza's population should be relocated elsewhere as part of a postwar plan. Israel's right-wing government was enthusiastic. Egyptian officials slammed the idea as crossing a strategic red line, arguing that absorbing large numbers of Palestinians would fundamentally alter Egypt's national security, threaten Sinai's stability and permanently undermine the Palestinian cause.
"It is seen by Egypt as an attempt to push the Palestinian problem into Egypt," Michael Harari, a former Israeli ambassador and policy fellow at Mitvim, the Israeli Institute for Regional Foreign Policies, told The Media Line. "Israel does not understand how the issue of Palestinian relocation is perceived as a national security threat."
The current Israeli government, widely described as the most right-wing in the country's history, includes senior ministers who've ruled out Palestinian statehood and encouraged Palestinian relocation from Gaza, putting Israel at odds with much of the Arab world, including Egypt.
Border Deployments and Treaty Limits
Israeli analysts have pointed to a gradual increase in Egyptian forces along the border, saying some deployments exceed limits set by the peace agreement. Under the 1979 treaty, the Sinai Peninsula is divided into zones with strict limits on Egyptian forces. The recent deployment of regular army and mechanized units into areas closest to the Israeli border has raised strategic concern within Israeli security circles.
Dekel pointed to massive investments in underground infrastructure and missile stockpiles. "From the day the peace agreement was signed, it was temporary in the eyes of the Egyptians," Dekel said. "There are currently four times more forces than agreed to along the border." While the sides remain mutually suspicious, the tensions are unlikely to turn into war. "Israel has enough threats; it does not need to deal with the huge Egyptian military in addition," Dekel said.
The issue of military presence became even more sensitive after Israeli forces took control of the Philadelphi Corridor, a narrow strip along the Gaza-Egypt border. That move raised disputes over security arrangements established under previous agreements. Egypt has insisted that any changes to border arrangements must respect existing understandings, while Israel has argued that tighter control is necessary to prevent weapons smuggling into Gaza.
Strategic Interests Beyond Israel
Egypt has spent the past decade modernizing its armed forces, purchasing advanced fighter aircraft, naval vessels, submarines and air defense systems while expanding military infrastructure across the country. "Egypt's security environment is increasingly complex, with conflict in Sudan, instability in Libya, tensions with Ethiopia and mounting domestic pressures all competing for Cairo's attention," Wahba said. "Egypt's regional ambitions are, for the time being, not primarily directed at confronting Israel."
Despite growing tensions, security cooperation between Israel and Egypt has never completely stopped. For years, the two countries have coordinated closely against jihadist groups operating in Sinai. Israel has supported Egypt's counterterrorism campaign through intelligence sharing and by approving temporary increases in Egyptian troop deployments in Sinai beyond treaty limits. That cooperation reflects the reality that the peace agreement serves vital interests for both sides. For Israel, peace removed the threat of conventional war with a major Arab military. For Egypt, the treaty ensured decades of border stability and vital US military assistance.
"This is really impressive," Harari said of the Octagon. "However, Egypt increasingly views Israel as unpredictable, and Israeli suggestions that Egypt's military buildup constitutes a threat only add to the tensions." He added: "It leaves Egypt free to deal with greater threats in the region. Israel isn't supposed to see Egypt's military buildup as a threat."
Why This Matters:
The inauguration of the Octagon arrives at a moment when the war in Gaza has tested the durability of the Egypt-Israel peace treaty more severely than any crisis since its signing 47 years ago. The treaty has held not because of trust but because it serves enduring strategic interests on both sides—Israel's security from conventional war with a major Arab military, Egypt's border stability and access to US military aid. But the combination of Egypt's unprecedented military modernization, Israeli government rhetoric about Palestinian relocation, and disputes over border deployments has created a dynamic of mutual suspicion that didn't exist at this scale before October 7, 2023. The risk isn't imminent war—both sides have too much to lose—but the erosion of the mechanisms that have kept the peace functional. As Wahba noted, the war has made cooperation "more complicated and more necessary than ever." If the political relationship continues to deteriorate while strategic coordination remains essential, the peace treaty will increasingly resemble a security arrangement between adversaries rather than a foundation for regional stability. That's a fragile basis for managing a border that both countries depend on.