Some context: Edward Randall Royce (born October 12, 1951) is an American politician who currently serves as a member of the United States House of Representatives for California's 39th congressional district, and previously the 40th, serving in Congress since 1993. A member of the Republican Party, Royce became the Chairman of the United States House Committee on Foreign Affairs in 2013. He was re-elected to his seat in 2016, having spent over $3.5 million on his campaign. On January 8, 2018, Royce announced that he will retire from Congress at the end of his current term and not run for re-election in 2018.
On April 26, 2013, Royce introduced the North Korea Sanctions Enforcement Act of 2013 (H.R. 1771; 113th Congress), a bill that would increase U.S. sanctions on North Korea. Royce said that "by shutting down North Korea's illicit activities, we deprive the Kim regime of the money he needs to pay his generals and to conduct nuclear weapons research." Royce also argued that "North Korea is undoubtedly one of the most significant security threats that we here face and our allies face."  On June 27, 2013, Royce introduced the Electrify Africa Act of 2013 (H.R. 2548; 113th Congress), a bill that would direct the President to establish a multiyear strategy to assist countries in sub-Saharan Africa develop an appropriate mix of power solutions to provide sufficient electricity access to people living in rural and urban areas in order to alleviate poverty and drive economic growth.  On November 13, 2013, Royce introduced the Taiwan Relations Act Affirmation and Naval Vessel Transfer Act of 2014 (H.R. 3470; 113th Congress) into the House. The bill would allow the sale of several Oliver Hazard Perry-class frigates to Mexico, Thailand, and Taiwan. Four naval vessels would be sold to Taiwan for about $10 million each. Mexico and Thailand would each receive two vessels as a grant. Royce argued in favor of the bill saying that "these ships would bolster Taiwan's defense." Royce also said that "these transfers help support the priorities of the U.S. Navy while strengthening the capability of allies and our close partners to meet our share maritime security objectives."
Was most of his involement over seas?
A: Mexico
Some context: The Cimmerians (also Kimmerians; Greek: Kimmerioi, Kimmerioi) were an ancient people, who appeared about 1000 BC  and are mentioned later in 8th century BC in Assyrian records. Probably originating in the Pontic steppe and invading by means of the Caucasus, they are likely to be those who in c. 714 BC assaulted Urartu, a state in north eastern Anatolia subject to the Neo-Assyrian Empire. They were defeated by Assyrian forces under Sargon II in 705 and turned towards Anatolia, conquering Phrygia in 696/5. They reached the height of their power in 652 after taking Sardis, the capital of Lydia; however an invasion of Assyrian controlled Anshan (Persia) was thwarted.
The supposed origin of the Cimmerians north of the Caucasus at the end of the Bronze Age loosely corresponds with the early Koban culture (Northern Caucasus, 12th to 4th centuries BC), but there is no compelling reason to associate this culture with the Cimmerians specifically.  There is a tradition in archaeology of applying Cimmerian to the archaeological record associated with the earliest transmission of Iron Age culture along the Danube to Central and Western Europe, associated with the Cernogorovka (9th to 8th centuries) and Novocerkassk (8th to 7th centuries) between the Danube and the Volga. This association is "controversial", or at best conventional, and is not to be taken as a literal claim that specific artifacts are to be associated with the "Cimmerians" of the Greek or Assyrian record.  The use of the name "Cimmerian" in this context is due to Paul Reinecke, who in 1925 postulated a "North-Thracian-Cimmerian cultural sphere" (nordthrakisch-kimmerischer Kulturkreis) overlapping with the younger Hallstatt culture of the Eastern Alps. The term Thraco-Cimmerian (thrako-kimmerisch) was first introduced by I. Nestor in the 1930s. Nestor intended to suggest that there was a historical migration of Cimmerians into Eastern Europe from the area of the former Srubna culture, perhaps triggered by the Scythian expansion, at the beginning of the European Iron Age. In the 1980s and 1990s, more systematic studies[by whom?] of the artifacts revealed a more gradual development over the period covering the 9th to 7th centuries, so that the term "Thraco-Cimmerian" is now rather used by convention and does not necessarily imply a direct connection with either the Thracians or the Cimmerians.
Are there any notable archaeologists that have researched the Cimmerians?
A:
The use of the name "Cimmerian" in this context is due to Paul Reinecke,