Your defense of your country is admirable unfortunately it is not based on fact,read the links I have posted previously then we go on from there.
The US is in Syria in direct violation of UN resolution 2118 which is mainly about chemical weapons and has this clause;
http://www.securitycouncilreport.org...s_res_2118.pdfRecalling the obligation under resolution 1540 (2004) that all States shall refrain from providing any form of support to non-State actors that attempt to develop, acquire, manufacture, possess, transport, transfer or use weapons of mass destruction, including chemical weapons, and their means of delivery
The US is supporting 'non state actors' who have weapons of mass destruction that have been used against the Syrian army and people.
Independent Investigation Finds That Syrian Rebels Used Chemical Weapons
https://www.almasdarnews.com/article...st-rebels-did/
http://www.globalresearch.ca/syria-u...forces/5363139
The US is the aggressor in Syria in that they are supporting, arming and training a rebel force that includes an off shoot of Alqeada that is attempting to take over the country by force of arms.
Russia is in Syria at the request of the Syrian Government to help defend the country against a rebel force supported by a foreign power.
Whether you like it or not the Assad Government is the government of Syria
Have a read of these and see just how aggressive the US actually is :
https://theintercept.com/2014/11/06/...ed-since-1980/
https://curiousmatic.com/bomb-map/
And how many countries has Russia invaded in recent times, well there is their incursion into Afghanistan, some may say their annexation of Crimea was an invasion even though a referendum was held that concluded that the Crimean people wanted to be part of Russia. Then there is Ukraine but only those who like to call Russia's an enemy would call that an invasion.