Question: What country is home to both the group responsible for a 3 hour shootout with federal police and the Los Zetas cartel?

Context paragraphs:
2015 Tanhuato–Ecuandureo shootout: On May 22, 2015, a three-hour shootout broke out between the Mexican Federal Police and alleged members of the Jalisco New Generation Cartel (CJNG) in Tanhuato and Ecuandureo, Michoacán, leaving 43 dead.  One of the fatalities was a Federal Police officer, while the others were suspected to be organized crime members.  The confrontation started when the Federal Police spotted a suspicious vehicle on a highway.  The authorities had received information that one of the properties in the area had been overrun by criminals.  Unconfirmed reports suggested that the CJNG leader Nemesio Oseguera Cervantes was in the area.  When they tried to pull over the vehicle, however, the men onboard opened fire at the police units.  A vehicle chase ensued and the security forces made their way into a large, rural property where the shootout intensified.  The Federal Police then called for ground and air reinforcements and neutralized the situation.

Illegal drug trade in Guatemala: The illegal drug trade in Guatemala includes trans-shipment of cocaine to the United States.  According to some reports, Mexican drug cartels such as Sinaloa have also established poppy growing operations there.  There is a reported relationship between the Mexican Los Zetas cartel and the Guatemalan Kaibiles military force.

Joint Operation Nuevo León-Tamaulipas: Joint Operation Nuevo León-Tamaulipas is an anti-drug joint operation in two Mexican states of Tamaulipas and Nuevo León by Federal Police and the Mexican Armed Forces.  The objective of the joint operation is to eliminate Los Zetas and Gulf Cartel operations in the area.  So far a large number of cartel members have been either killed or arrested.  Recently Los Zetas and the Gulf Cartel have broken relations and started fighting each other.

La Resistencia (gang): La Resistencia (English: "The Resistance"), also known as Cárteles Unidos (English: "United Cartels") is a Mexican criminal enforcer squad composed of well trained gunmen from the Sinaloa Cartel, Gulf Cartel and Knights Templar Cartel dedicated to killing or expelling the Los Zetas Cartel operatives from the states of Michoacán and Jalisco.

Operation Sinaloa: Operation Sinaloa or Operation Culiacan - Navolato (Spanish: Operacion Sinaloa/Operacion Conjunto Sinaloa) is an ongoing Anti-drug trafficking operation in the Mexican state of Sinaloa by the Federal Police and the Mexican Armed Forces.  Its main objective is to cripple all cartel organizations such as the Sinaloa Cartel, Beltrán-Leyva Cartel and Los Zetas that operate in that state.  The Military was deployed in response to the murder of Mexico's Federal Police commissioner Édgar Eusebio Millán Gómez.

Ayman Joumaa: Ayman Saied Joumaa is a Colombian/Lebanese national and alleged drug kingpin.  The US Treasury Department alleges that his organization launders money and traffics illicit drugs in the Americas, Middle East, Europe and Africa, and that he has ties to Hezbollah and Los Zetas cartel.

2012 Nuevo Laredo massacres: The 2012 Nuevo Laredo massacres were a series of mass murder attacks between the allied Sinaloa Cartel and Gulf Cartel against Los Zetas in the border city of Nuevo Laredo, Tamaulipas, across the U.S.-Mexico border from Laredo, Texas.  The drug-violence in Nuevo Laredo began back in 2003, when the city was controlled by the Gulf Cartel.  Most media reports that write about the Mexican Drug War, however, point to 2006 as the start of the drug war.  That year is a convenient historical marker because that's when Felipe Calderón took office and carried out an aggressive approach against the cartels.  But authors like Ioan Grillo and Sylvia Longmire note that Mexico's drug war actually began at the end of Vicente Fox's administration in 2004, when the first major battle took place in Nuevo Laredo between the Sinaloa Cartel and Los Zetas, who at that time worked as the armed wing of the Gulf Cartel.

Los Zetas: Los Zetas (] , Spanish for "The Zs") is a Mexican criminal syndicate.  Considered by the US government to be "the most technologically advanced, sophisticated, efficient, violent, ruthless, and dangerous cartel operating in Mexico", the organization has expanded beyond the traditional purview of drug trafficking and also runs profitable sex trafficking and gun running rackets.  The origins of Los Zetas date back to the late 1990s when commandos of the Mexican Army deserted their ranks and began working as the enforcement arm of the Gulf Cartel.  In February 2010, Los Zetas broke away from their former employer and formed their own criminal organization.

Operación Lince Norte: Operación Lince Norte (Operation Lynx North), was a military operation conducted by the Mexican Secretariat of National Defense, from July 16 to August 4, 2011, in the states of Coahuila, Nuevo Leon, Tamaulipas and San Luis Potosi.  The prime objective was to weaken the Los Zetas Cartel and the Gulf cartel.

Jalisco New Generation Cartel: The Jalisco New Generation Cartel (Spanish: "Cártel de Jalisco Nueva Generación" , "CJNG" and "Matazetas") is Mexican criminal group based in Jalisco and headed by Nemesio Oseguera Cervantes ("El Mencho"), one of Mexico's most-wanted drug lords.  The CJNG are currently fighting the Knights Templar Cartel and Los Zetas for control of the cities of Guadalajara, Jalisco and the states of Michoacán and Veracruz.  The CJNG also operates in the states of Nayarit, Colima, and Guanajuato.  While this cartel is best known for its fights against the Zetas, it has also been battling La Resistencia for control of Jalisco and its surrounding territories.

Supporting paragraphs: 2015 Tanhuato–Ecuandureo shootout Jalisco New Generation Cartel
Answer: Mexico