DUBAI, United Arab Emirates — Iran’s supreme leader says his nation is living through “days of God.”

The Islamic Republic has been reeling from one crisis to another, from the targeted killing by the United States of its top general to the Revolutionary Guard’s accidental shootdown of a passenger plane carrying scores of young people, most of them Iranians. U.S. sanctions have crippled its economy as tensions with America have soared.

In a rare Friday sermon in Tehran, Ayatollah Ali Khamenei stuck to the playbook Iran has relied on since 1979, blaming the country’s woes on the U.S. and other Western powers, and proclaiming that Iranians still support the Islamic Revolution.

Here’s a look at the various crises Iran faces:

U.S. SANCTIONS

After withdrawing from Iran’s 2015 nuclear agreement with world powers, President Donald Trump began ratcheting up sanctions. The sanctions have exacerbated an economic crisis, sending the local currency into a freefall and wiping away many people’s life savings.

LOSS OF SOLEIMANI

As head of the Revolutionary Guard’s elite Quds Force, Soleimani was the architect of Iran’s regional military operations and its support for armed groups in Lebanon, Syria, Iraq and Yemen. He was blamed for the killing of hundreds of American soldiers by Iran-backed militias in the years after the 2003 U.S.-led invasion of Iraq. In Iran, he was seen by many as a mythic figure who had defended the nation. Critics and supporters alike say he will be tough to replace.

PLANE TRAGEDY

In response to the killing of Soleimani, Iran launched a wave of ballistic missiles at U.S. bases in Iraq. As Iran braced for a counterattack, the Revolutionary Guard shot down a passenger plane shortly after it took off from Tehran’s international airport last week, mistaking it for a U.S. cruise missile. Most of those killed were Iranians.

Iranian authorities concealed their role for three days, initially blaming a technical failure, until Western leaders said they had mounting evidence that a surface-to-air missile had brought the plane down. Iranian officials have apologized and promised to punish those responsible, but have faced widespread criticism and international demands to pay compensation to victims’ families.

STREET PROTESTS

As the economic crisis has worsened, Iran has seen wave after wave of protests, usually sparked by economic grievances but rapidly escalate into calls to overthrow the Islamic Republic. The Revolutionary Guard’s announcement Jan. 11 that it was responsible for shooting down the plane sparked days of protests in the streets and on university campuses. Security forces dispersed some of the crowds with tear gas and live ammunition.