Syria has been engulfed in a devastating civil war since 2011 after Syrian President Bashar Assad lost control over large parts of the country to multiple revolutionary groups. The conflict has since drawn in foreign powers and brought misery and death to Syrians.

Syria's army, officially known as the Syrian Arab Army (SAA), is loyal to Syrian President Bashar al-Assad and is fighting to restore the president's rule over the entire country. The SAA has been fighting alongside a number of pro-Assad militias such as the National Defense Force and has cooperated with military advisors from Russia and Iran, which back Assad.

Turkey, which is also part of the US-led coalition against IS, has actively supported rebels opposed to Assad. It has a tense relationship with its American allies over US cooperation with Kurdish fighters, who Ankara says are linked to the Kurdistan Workers' Party (PKK) fighting in Turkey. Turkey has launched multiple military offensives targeting Kurdish militias.

The Kremlin has proven to be a powerful friend to Assad. Russian air power and ground troops officially joined the fight in September 2015 after years of supplying the Syrian army. Moscow has come under fire from the international community for the high number of civilian casualties during its airstrikes. However, Russia's intervention turned the tide in war in favor of Assad.

A US-led coalition of more than 50 countries, including Germany, began targeting IS and other terrorist targets with airstrikes in late 2014. The anti-IS coalition has dealt major setbacks to the militant group. The US has more than a thousand special forces in the country backing the Syrian Democratic Forces.

The Free Syrian Army grew out of protests against the Assad regime that eventually turned violent. Along with other non-jihadist rebel groups, it seeks the ouster of President Assad and democratic elections. After suffering a number of defeats, many of its members defected to hardline militant groups. It garnered some support from the US and Turkey, but its strength has been greatly diminished.

Fighting between Syrian Kurds and Islamists has become its own conflict. The US-led coalition against the "Islamic State" has backed the Syrian Democratic Forces, an alliance of Kurdish and Arab militias. The Kurdish YPG militia is the main component of the SDF. The Kurds have had a tacit understanding with Assad.

"Islamic State" (IS) took advantage of regional chaos to capture vast swathes of territory in Iraq and Syria in 2014. Seeking to establish its own "caliphate," IS has become infamous for its fundamentalist brand of Islam and its mass atrocities. IS is on the brink of defeat after the US and Russia led separate military campaigns against the militant group.

IS is not the only terrorist group that has ravaged Syria. A number of jihadist militant groups are fighting in the conflict, warring against various rebel factions and the Assad regime. One of the main jihadist factions is Hay'at Tahrir al-Sham, which controls most of Idlib province and has ties with al-Qaeda.

Iran has supported Syria, its only Arab ally, for decades. Eager to maintain its ally, Tehran has provided Damascus with strategic assistance, military training and ground troops when the conflict emerged in 2011. The Iran-backed Lebanese Shiite militant group Hezbollah also supports the Assad regime, fighting alongside Iranian forces and paramilitary groups in the country.

Hezbollah, or Party of God, was conceived by Muslim clerics in the 1980s in response to the Israeli invasion of South Lebanon in 1982. The Shiite group has a political and military wing.

Hezbollah emerged in the 1980s as an amalgamation of Shiite militias and played a major role in the Lebanese civil war. It used guerrilla warfare to drive Israeli forces out of South Lebanon — Israel withdrew in 2000. Israel and Hezbollah fought another war in 2006. Its defense of Lebanon against Israel had won it cross-sectarian support and acceptance in Lebanese society.

Since its creation, Hezbollah has received military, financial and political support from Iran and Syria. Today, Hezbollah's military wing is more powerful than Lebanon's own army and has become a major regional paramilitary force.

Hezbollah turned its focus to politics following the end of Lebanon's 1975-1990 civil war. It represents a large section of the Lebanese Shiite population and is allied with other sectarian groups, including Christians. Their political development has mostly come under Hassan Nasrallah (pictured), who became the group's leader in 1992.

Unlike other parties in Lebanon's multi-sided 1975-1990 civil war, Hezbollah did not disband its armed wing. Some Lebanese political groups, such as Prime Minister Saad Hariri's Future Movement, want Hezbollah to put down its arms. Hezbollah argues its militant wing is necessary to defend against Israel and other external threats.

A number of countries and bodies, including the United States, Israel, Canada and the Arab League, consider Hezbollah a terrorist organization. However, Australia and most of the European Union differentiate between its legitimate political activities and its militant wing.

Hezbollah has been one of the main backers of Syrian President Bashar Assad in the country's civil war. Its entrance into the war helped save Assad, one of its chief patrons; secured weapons supply routes from Syria and formed a buffer zone around Lebanon against Sunni militant groups it feared would take over Syria. As a result it has won considerable support from Shiite communities in Lebanon.

Lebanon has long been at the center of regional power struggles, particularly between Saudi Arabia and Iran. However, Hezbollah's military and political ascendancy, as well as its intervention in Syria, have also helped stoke Sunni-Shiite sectarian tensions in Lebanon and across the region.

Iran and Hezbollah have increased their political and military strength through the war in Syria. Israel views this as a threat and has carried out dozens of airstrikes on Iran/Hezbollah targets in Syria. Israel has vowed to not let Iran and Hezbollah create a permanent presence in Syria. There is growing concern of another war between Hezbollah and Israel that could draw in Iran.

On May 14, 1948, David Ben-Gurion, future first prime minister of Israel, declares the state's independence, outlining the Jewish story: "The people kept faith with (the land) throughout their dispersion and never ceased to pray and hope for their return to it and for the restoration in it of their political freedom." It was the birth of an internationally recognized Jewish homeland.

While the controversial idea of a God-given land for Jews has biblical roots, the Holocaust was a close, powerful backdrop for the significance of Israel's founding. Nazi Germany murdered six million Jews across Europe, and those who survived the concentration camps endured expulsion and forced labor. The above photo shows survivors of the Auschwitz camp following liberation.

Directly after Israel's founding, it was attacked by troops from Egypt, Syria, Jordan and Iraq - among others. Israel pushed back and expanded its control over 77% of Palestinian territory. Some 700,000 Palestinians were driven from their homes. "Nakba" is what Palestinians call this event. The war encapsulated the still unresolved Mideast conflict sparked in 1917 with the Balfour Declaration.

These land collectives, known as kibbutzim in the plural, were established across Israel following independence. Many were run by secular or socialist Jews in an effort to realize their vision of society.

Tensions with its Arab neighbors erupted in the Six-Day War in June 1967. With a surprise attack, Israel is able to swiftly defeat Egypt, Jordan and Syria, bringing the Arab-populated areas of the Sinai Peninsula, the Gaza Strip, the West Bank, East Jerusalem and the Golan Heights under Israeli control. Victory leads to occupation — and more tension and conflict.

Israel's settlement policy worsens the conflict with Palestinians. Due to development and expansion of Jewish areas on occupied Palestinian land, the Palestinian Authority accuses Israel of making a future Palestinian state untenable. Israel has largely ignored the international community's criticism of its settlement policy, arguing new construction is either legal or necessary for security.

In winter 1987, Palestinians begin mass protests of Israel's ongoing occupation. Unrest spreads from Gaza to East Jerusalem and the West Bank. The uprising eventually wound down and led to the 1993 Oslo Accords — the first face-to-face agreement between the government of Israel and the Palestine Liberation Organization (PLO), the representative body of the Palestinian people.

With former US President Bill Clinton as a mediator, Israeli Prime Minister Yitzhak Rabin (left) and PLO Chairman Yasser Arafat hold peace talks. The result, the Oslo I Accord, is each side's recognition of the other. The agreement leads many to hope that an end to the Israel-Palestine conflict is not far off, but peace initiatives suffer a major setback when Rabin is assassinated two years later.

A right-wing Jewish fanatic shoots and kills Rabin on November 4, 1995, while he is leaving a peace rally in Tel Aviv. Rabin's assassination throws the spotlight on Israel's internal social strife. The divide is growing between centrist and extremist, secular and religious. The photo shows Israel's then-acting prime minister, Shimon Peres, next to the empty chair of his murdered colleague.

Nazi Germany's mass murder of Jews weighs on German-Israeli relations to this day. In February 2000, Germany's then-President Johannes Rau addresses the Knesset, Israel's parliament, in German. It is a tremendous emotional challenge for both sides, especially for Holocaust survivors and their descendants, but also a step towards closer relations after unforgettable crimes.

In 2002, amid the violence and terror of the Second Intifada, Israel starts building a 107-kilometer-long (67-mile-long) barrier of barbed wire, concrete wall and guard towers between itself and Palestinian areas of the West Bank. It suppresses the violence but does not solve the larger political conflict. The wall grows in length over the years and is projected to reach around 700 kilometers.

Germany's current foreign minister, Heiko Maas, steps decisively into an ever closer German-Israeli relationship. His first trip abroad as the country's top diplomat is to Israel in March 2018. At the Yad Vashem Holocaust memorial and museum in Jerusalem, he lays a wreath in memory of Holocaust victims.