In midst of the civil unrest in Iraq, President Obama announced on Monday that he is deploying about 200 more American troops to the country to boost security at the U.S. Embassy and international airport in Iraq's capital Baghdad.

The troops, along previously announced forces, are being sent "for the purpose of protecting U.S. citizens and property, if necessary, and (are) equipped for combat," wrote the president in a letter addressed to Congress, reports USA Today.

Back on June 16, Obama also announced the deployment of 275 troops to protect the embassy, reports Fox News. Plus, the president is in the process of sending up to 300 military advisers to assist Iraq as it battles an Al Qaeda splinter group known as the Islamic State in Iraq and the Levant/Syria, or ISIS, which has taken over major cities, and threatens Baghdad. This brings the total U.S. deployments to Iraq this month to 775.

In the letter, Obama said the force was "equipped for combat" and would "remain in Iraq until the security situation becomes such that it is no longer needed."

The Pentagon also released a statement saying that the additional personnel arrived in Baghdad on Sunday, along with "a detachment of helicopters and unmanned aerial vehicles," or drones, "which will bolster airfield and travel route security," the Washington Post reports.

"The presence of these additional forces will help enable the Embassy to continue its critical diplomatic mission and work with Iraq on challenges they are facing as they confront (ISIS)," Pentagon Press Secretary Rear Admiral John Kirby said in a statement.

Kirby added that the U.S. is also sending helicopters and drones that can "bolster airfield and travel route security."

Earlier this month, Obama authorized the deployment of 300 troops to Iraq to train the Iraq army and assist Iraqi forces fighting the Sunni militants. Those troops are tasked with assessing the situation on the ground, and the capabilities of both the Iraqi army and the Islamic militant terrorist group.