Relations between Serbia and Bosnia have remained tenuous since the end of the Bosnian conflict 20 years ago, as underscored by the stone-throwing attack on the Serbian premier at a ceremony Saturday marking the Srebrenica massacre.

Bosnia's 1992-95 inter-ethnic war left 100,000 people dead and around two million homeless, nearly half the country's population at the time.

Like a brush fire kicking up in America's southwest, the storm brought on by Donald Trump's political bombast threatens to scorch all it touches as Republicans brace for fallout from their rival's remarks.

The billionaire tycoon's caustic, seemingly unrehearsed comments about Mexican immigrants, uttered when he launched his White House campaign in mid-June, sparked immigration debates and triggered questions about the braggadocio of a candidate unafraid to disparage fellow Republicans, and whether it hurts the party's chances in 2016.

Their leaders have paid their respects to the victims, begged forgiveness "on their knees," and deplored a "heinous crime," but Serbia and Serbs still stubbornly refuse to call the Srebrenica massacre a genocide, experts say.

International courts have ruled that the 1995 killing of nearly 8,000 Muslim men and boys in the ill-fated Bosnian town by Serb forces was genocide, "but here it is difficult to say that word," prominent independent political analyst Vladimir Goati said.

All eyes turned to the European Central Bank Monday following the resounding 'No' in Greece's referendum, as it is seen as the only institution capable of stemming market panic and preventing the Greek economy from collapsing.

In Sunday's referendum, more than 61 percent of Greeks rejected creditor demands for further austerity in return for more bailout funds, sending Greece's eurozone partners scrambling to respond. 

The number of Cubans heading to the U.S. has surged in the months since the historic thaw in bilateral relations -- a swell experts attribute to uncertainty over the future of U.S. policy that favors such travelers.

According to the U.S. Customs Department, 9,371 Cuban migrants came into the U.S. between January and March, more than twice the number from the same period in 2014.

Despite a two-year campaign, Egypt is facing an increasingly powerful and sophisticated insurgency in the Sinai Peninsula and the jihadist hotbed is emerging as President Abdel Fattah al-Sisi's biggest challenge.

The arid and rugged peninsula bordering Israel and the Gaza Strip has long been a breeding ground for militancy, especially from Bedouin tribes who have complained of being marginalized by Cairo.

The buildings that will become U.S. and Cuban embassies in their neighbor's respective capitals on July 20 have seen over five decades of Cold War protests, provocations and strains.

Now, with the longtime enemies finally putting aside all that enmity, Presidents Barack Obama and Raul Castro have exchanged letters agreeing to restore full diplomatic ties.

No matter what the political outcome of the current Greek debt crisis, in practical terms Greece will find it very difficult to turn its back on the euro.

On Sunday the Greek nation goes to the polls in what European leaders say is effectively a vote on whether or not to stay in the eurozone.

Iran's president has been pursuing a nuclear agreement for two years but even if a deal is reached Hassan Rouhani and his government will soon face mounting political pressure at home.

Having sought to end the nuclear crisis -- and with it the international sanctions that have paralyzed Iran's economy -- Rouhani's fate is often seen as inextricably linked to the negotiations.

The Islamic State group's "caliphate" enters its second year Monday with the jihadists expanding their territory in Syria and Iraq and their global reach by claiming attacks in Tunisia and Kuwait.

The extremist group headed by Abu Bakr al-Baghdadi announced on June 29, 2014 that it was reviving a form of Islamic government known as the "caliphate", pledging it would "remain and expand".