The president sends representatives to meet with another country's government to try to persuade the country to adopt environmental protection measures. what tool of foreign policy is this an example of?

This is an example of using Diplomacy as a tool for foreign policy.

Diplomacy is the act of managaing international relations through various activities, including talks, forums etc.

Country's are often represented by 'Diplomats' who work on behalf of their country to ensure strong foriegn relations.

Some examples of diplomats can include counsel general, ambassadors etc.

In this example, the US is sending a format, government approved represenatives to another country in order to persudate them to adopt an environment protection policy that the US believes in. This is pure diplomacy at work where human to human interaction and goodwill is being used to create benefits for the United States.

the founder of the byzantine empire and its first emperor, constantine the great, moved the capital of the roman empire to the city of byzantium in 330 ce, and renamed it constantinople.

the byzantine empire (the eastern roman empire) was distinct from the western roman empire in several ways; most importantly, the byzantines were christians and spoke greek instead of latin.

constantine the great also legalized christianity, which had previously been persecuted in the roman empire. christianity would become a major element of byzantine culture.

constantinople became the largest city in the empire and a major commercial center, while the western roman empire fell in 476 ce.

as emperor, constantine enacted many administrative, financial, social, and military reforms to strengthen the empire. the government was restructured and civil and military authority separated. a new gold coin, the solidus, was introduced to combat inflation. it would become the standard for byzantine and european currencies for more than a thousand years. as the first roman emperor to claim conversion to christianity, constantine played an influential role in the development of christianity as the religion of the empire. in military matters, the roman army was reorganized to consist of mobile field units and garrison soldiers capable of countering internal threats and barbarian invasions. constantine pursued successful campaigns against the tribes on the roman frontiers—the franks, the alamanni, the goths, and the sarmatians, and even resettled territories abandoned by his predecessors during the turmoil of the previous century.