Pope and Russian Orthodox Patriarch hold historic meeting in Cuba

It was the first time a pope and Russian patriarch had ever met.

The Vatican sees the meeting as an important new step in its ecumenical efforts, but many Orthodox observers see Kirill's willingness to sit down with a pope as more an attempt to assert Russia and Russian Orthodoxy at a time when Moscow is being isolated by the West.

"Finally!" Francis exclaimed as he embraced Kirill, and Kirill told the Pope through an interpreter: "Now things are easier."

Francis was having the brief talks in Cuba before heading off on a five-day visit to Mexico.

The meeting and signing of a joint declaration was decades in the making and cemented Francis' reputation as a risk-taking statesman who values dialogue, bridge-building and rapprochement at almost any cost.

Indeed, while the meeting with Kirill has been hailed by many as an important ecumenical breakthrough, Francis has also come under criticism for essentially allowing himself to be used by a Russia eager to assert itself among Orthodox Christians and on the world stage at a time when the country is increasingly isolated from the West.

The joint declaration is expected to touch on the single most important issue of shared concern between the Catholic and Orthodox churches today: the plight of Christians in Iraq and Syria who are being killed and driven from their homes by the Islamic State group.

It is being signed in the uniquely ideal location of Cuba: far removed from the Catholic-Orthodox turf battles in Europe, a country that is Catholic and familiar to Latin America's first pope, but equally familiar to the Russian church given its anti-American and Soviet legacy.

The Vatican is hoping the meeting will improve relations with other Orthodox churches and spur progress in dialogue over theological differences that have divided East from West ever since the Great Schism of 1054 split Christianity.

But Orthodox observers say Kirill's willingness to finally meet with a pope has less to do with any new ecumenical impulse than grandstanding within the West and the Orthodox Church at a time when Russia is increasingly under fire from the West over its military actions in Syria and Ukraine.

Kirill, a spiritual adviser to Russian president Vladimir Putin, leads the most powerful of the 14 independent Orthodox churches that will meet this summer in Greece in the first such pan-Orthodox synod in centuries.

Catholic and Orthodox split in the Great Schism of 1054 and have remained estranged over a host of issues, including the primacy of the pope and, more recently, Russian Orthodox accusations that the Catholic Church was poaching converts in former Soviet lands.

Those tensions have prevented previous popes from ever meeting with the Russian patriarch, even though the Vatican has long insisted that it was merely ministering to tiny Catholic communities.