Before lucy could begin to with the enemy, the police arrested her for being a spy

This seems more an English-area question, but the word you're looking for is FRATERNIZE.

"Before Lucy could begin to fraternize with the enemy, the police arrested her for being a spy."

Words in English such as "fraternize" come from the Latin word fraternus, meaning "brotherly."  Frater is the Latin word for "brother."  Think of how we refer to a group of "brothers" who live together in a "frat" house at a university as a "fraternity."   To "fraternize" means to associate with someone in a friendly way.  If you do that (or conspire to do that) with representatives of a country that is your own nation's enemy, that is considered to be spying or espionage.

Today the term in the news for "fraternizing" has been "collusion," as an investigation is underway as to whether members of the Trump presidential campaign team colluded with or fraternized with Russian operatives in order to sway the 2016 presidential election in the United States.

the answer that best explains what happened to george washington at fort necessity, pennsylvania is : washington was attacked by the french but was able to negotiate with them to peacefully end fighting. the battle took place on july 3, 1754. the battle is considered as being the start of the french and indian war.